The process of assigning ages to rocks and fossils based on the breakdown of certain elements into other elements is called radioactive dating.
Radioactive dating is based on the concept that certain elements, such as uranium and potassium, are radioactive, meaning they undergo a process of decay over time, during which they emit particles and transform into different elements, such as lead and argon. By measuring the ratio of the original radioactive element to the element it decays into, scientists can determine how long ago the rock or fossil formed.
There are several different methods of radioactive dating, including carbon-14 dating, potassium-argon dating, and uranium-lead dating, each of which is suitable for different types of materials and time periods.
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Where is most star formation in the Milky Way occurring at the present time? A. In the spiral arms. B. Only at the outer edge of the disk. C. In globular clusters. D. Only in the outer halo.
Most star formation in the Milky Way occurring at the present time is option A. In the spiral arms.
The regions of strong star formation known as spiral arms are more obvious in blue light. From the center of spiral and barred spiral galaxies, these regions extend.Turbulence and star formation are aided by brief instabilities in the gases that cause spiral arms. To put it another way, a lot of gases are in the spiral arms, which are the main ingredients needed to make a new star.
Spiral arms are the result of brief cracks in the gases that facilitate star formation and cause turbulence. To put it another way, there are a lot of gases in spiral arms, which are the primary building blocks for new stars.Spiral arms indicate that they are not solid or long-lasting structures. At the moment, it is thought that a density wave encircles a spiral galaxy and makes spiral arms.All of the galaxy's spiral arms are contained within the thin disk.
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what are the ideal conditions for a strong radiation inversion? a. turbulent, moist air; long night; no clouds b. calm, dry air; short night; cloudy c. calm, moist air; long night; scattered clouds d. calm, dry air; long night; no clouds
Answer: D
Explanation:
Calm, dry air; long night; no clouds.
The ideal conditions for a strong radiation inversion are calm, dry air, long night, no clouds.
Radiation inversion: Radiation inversion occurs at night, air near ground cools faster than air above. Sun rise heats up the air and usually diminishes by noon. It is the process of cooling by radiating infrared energy.
At night the ground cools more rapidly than the air above the ground, ground is colder than the surface air immediately above it. The air close to the ground is also cooled through Infrared radiation, but more importantly, also through heat conduction to the ground. The air high above the ground is cooled mostly through infrared radiation and remains warm longer.
As a result, the air close to the ground becomes colder than the air high above the ground.
Thus the correct option is (D) calm, dry air, long nights, no clouds.
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Sophia had been reading about the hitory of the Earth. She wa urpried at the different way geologit learn about the age of rock. Why i it important for geologit to ue both relative and abolute age to determine the age of rock?
Because absolute age is expressed to determine the age of rocks in years or millions of years, while relative age is the placement of a stratigraphy relative to the ages.
Geological Time ScaleThere are two types of geological time scales used to determine the age of the Earth and relate various events in Earth's history, namely the Relative Time Scale and the Absolute Time Scale. An explanation of each geological time scale is as follows:
1. Relative Time Scale
The relative time scale is the time scale used based on the sequence of rock layers along with the evolution of the life of organisms in the past. This scale is formed on the basis of events that occurred in the development of geology itself. The relative time scale was first developed in the 18th to 19th centuries in Europe.
In this case the fossils of ancient creatures are used as the basis of the geological time scale. The names of all Eons or periods as well as Eras or periods end with the word zoic, this is because in that time range the animal life is very familiar.
2. Absolute Time Scale
The next time scale is the absolute or radiometric time scale, which is a scale determined based on the radioactive scattering of the chemical elements contained in various types of rocks. This absolute or radiometric time scale developed from the science of physics which is applied to answer problems that arise in the field of geology.
It is possible to determine the age of rocks in thousands, millions or even billions of years after the discovery of radioactive elements. Geologists or scientists use minerals that naturally contain radioactive elements and can be used to calculate the absolute age in years of a rock.
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what is the largest potential source to future sea level rise?
Answer:
Climate Change
Explanation:
Thermal expansion of the oceans and retreating glaciers are the main contributors to sea level rise in the past century and the near future. On multicentennial timescales, the Greenland and Antarctic ice sheets will likely dominate global sea level rise .
Globally, sea level rise is not uniform. As a result of subsidence (land sinking or settling) or post-glacial rebound (land rising due to the loss of the weight of ice after melting), some land masses are moving up or down, causing local relative sea level rise to be higher or lower than the global average. Furthermore, the gravitational effects of changing ice masses and spatially varying patterns of warming cause differences in sea water distribution around the world.
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What simple scientific technique did geologists like Hutton, Steno, and Lyell use to draw fundamental geologic conclusions?
a. Analyzing the chemistry of the rock record
b. Digging underground to observe three-dimensional structures
c. Comparing ancient rocks/fossils to modern counterparts
d. Using gems and metal deposits to understand geology
e. Performing experiments to replicate the rock record
The Scientific Technique used was "Comparing ancient rocks/fossils to modern counterparts" by geologists like Hutton, Steno, and Lyell used to draw fundamental geologic conclusions. The option C is correct.
John Hutton and James Hutton co-created the idea of uniformitarianism with Charles Lyell. He thought that progressive processes over a long period of time generated Earth's landforms, such as the mountains and oceans.
In order to reliably date historic events, geologists frequently utilise radiometric dating techniques, which are based on the natural radioactive decay of specific elements like potassium and carbon.
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11. discuss the similarities and differences between this current seismic data and the seismic data from 1980.
Seismic data from 1980 and the current data have some similarities and differences.
Both data sets provide information on earthquakes and the structure of the Earth's interior. However, the current data benefits from advances in technology, allowing for more precise measurements and a larger data set. Also, computer processing capabilities have greatly improved, allowing for quicker analysis of the data. On the other hand, seismic data from 1980 may have limitations due to outdated equipment and techniques.
Despite these differences, both sets of data provide valuable insights into the Earth's seismic activity. In conclusion, while there have been significant advancements in seismic data collection and analysis since 1980, both sets of data remain valuable in understanding earthquakes and the Earth's interior.
The answer is based on general knowledge, as no specific data is given.
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soft power vs hard power which one is better
The effectiveness of soft power and hard power depends on the context and goals of a situation.
Soft power, the ability to attract and persuade others through cultural, ideological, and institutional means, can be more sustainable and cost-effective in achieving long-term goals. Hard power, the use of coercion or the threat of force, may be necessary in certain circumstances to defend national interests or resolve conflicts.
Soft power is considered to be a more effective tool in attracting and influencing people, as it is based on attraction rather than coercion. It can be used to create a positive image for a country and to attract foreign investment, tourism, and cultural exchange.
In contrast, hard power is a more direct and forceful means of influence, relying on military, economic, and diplomatic power. Hard power can be used to resolve conflicts and protect national security, but it is often costly and can lead to negative consequences, such as damaging relationships with other countries or destabilizing regions.
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What Geological evidence do we have for the formation of Grouse Mountain? (North Vancouver)
(with sources pls)
The basalt of Grouse Mountain, primarily a series of large, blocky lava flows with scoriaceous tops and bottoms that range in colour from dark brownish grey to black.
What do you mean by Grouse Mountain?One of the Pacific Ranges' North Shore Mountains, Grouse Mountain is located in Canada's District Municipality of North Vancouver.
There are three main physiographic areas in the Vancouver area. Mountain ranges (the Coast and Cascade Mountains) consist of rocky ridges and summits with steeply sloping valleys in between.
Larger valleys are home to lakes and streams as well as thick contemporary and Ice Age sediments.
In this area, the lavas were intercalated with thin layers of tuffaceous sedimentary rocks. At Grouse Mountain, it's around 250 feet thick, but in other places, it can be up to 500 feet thick.
Therefore, the basalt of Grouse Mountain, primarily a series of large, blocky lava flows with scoriaceous tops and bottoms that range in colour from dark brownish grey to black. Vancouver's central business district is situated on significantly higher terrain that is covered with glacial till.
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What did Russia take from Ukraine in 2014?
the geographical location of many of the world's large deserts is caused by what global climate feature?
Answer:
the rotation of the earth
Explanation:
the tilting of the earth changes the relation to the sun
which type of plate interaction occurs in nepal along the australian-indian /eurasian boundary segment?
Answer:
indo austrian subduction boundary
Explanation:
it might be wrong so if you can't get it wrong don't take my word for it
Where are all five oceans located?
Answer:
NOAA created the world map above to show the boundaries of the five major oceans. They set the boundary between the North Atlantic and South Atlantic at the equator, the boundary between the North Pacific and South Pacific at the equator; and the northern boundary of the Southern Ocean at 60 degrees south latitude.
(WILL GIVE BRAINLIEST)Explain how ethic groups and population density relate to one another.
AnswerThe proportion of human genetic variation due to differences between populations is modest, and individuals from different populations can be genetically more similar than individuals from the same population. Yet sufficient genetic data can permit accurate classification of individuals into populations. Both findings can be obtained from the same data set, using the same number of polymorphic loci. This article explains why. Our analysis focuses on the frequency, ω, with which a pair of random individuals from two different populations is genetically more similar than a pair of individuals randomly selected from any single population. We compare ω to the error rates of several classification methods, using data sets that vary in number of loci, average allele frequency, populations sampled, and polymorphism ascertainment strategy. We demonstrate that classification methods achieve higher discriminatory power than ω because of their use of aggregate properties of populations. The number of loci analyzed is the most critical variable: with 100 polymorphisms, accurate classification is possible, but ω remains sizable, even when using populations as distinct as sub-Saharan Africans and Europeans. Phenotypes controlled by a dozen or fewer loci can therefore be expected to show substantial overlap between human populations. This provides empirical justification for caution when using population labels in biomedical settings, with broad implications for personalized medicine, pharmacogenetics, and the meaning of race.
Explanation: hopefully that makes sense-!
how do the surviving terranauts get back to the seafloor? in the core
In "The Core", the surviving Terranauts return to the seafloor by using the spacecraft "Virgil" to drill through the Earth's mantle and re-enter the ocean. This is done in order to restart the Earth's magnetic field and save humanity from certain doom.
The Core is a 2003 science fiction disaster film about a group of scientists who embark on a dangerous mission to the center of the Earth to save humanity from impending doom. The Earth's magnetic field has stopped working, which will have catastrophic effects on life on the planet. The only solution is to restart the Earth's core, and the Terranauts are sent to do this. To get back to the seafloor, the Terranauts use the Virgil, a high-tech drilling vessel, to drill through the Earth's mantle and reach the ocean. The ocean is considered the safest place to re-enter, as it will help to stabilize the Virgil and provide a way back to the surface. By doing so, they successfully restart the Earth's core and save humanity from disaster.
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why is much of south america’s pacific coast dry?
Much of the South America's pacific coast is dry because The Andes' formidable mountain barrier has a negative impact on South America's coastal climate.
As they traverse the Andes, easterly winds from the Atlantic Ocean lose their moisture, leaving practically little water for the region under the Andes' western rain shadow.
The Peru Current, which originates in the Antarctic and moves north, makes the issue worse. Instead of bringing warm, wet breezes, it brings frigid, dry air.
The arid desert habitat of South America's coastal lowlands climbs to the untamed alpine biome of the Andes highlands in just a few hundred kilometres. The Amazon River Basin in the continent is characterised by a thick tropical rain forest, whereas the Paraná River Basin is characterised by extensive grasslands.
South America consists of one of the greatest diversity of plant and animal species of any continent in the world.
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with sql, how do you select all the records from a table named "vendors" where the value of the column "country" ends with an "a"?
```SQL , SELECT * , FROM vendors WHERE country LIKE '%a';```vendors" where the value of the column "country" ends with an "a".
This SQL query will select all the records from the table named "vendors" where the value of the column "country" ends with an "a". The "SELECT *" statement is used to select all the columns from the table, the "FROM" statement is used to indicate the table from which data is being selected, and the "WHERE" clause is used to specify the condition for the selection. The "LIKE" statement is used to compare the value of the column with a value ending with an "a", and the "%" symbol is used to indicate wildcards. By combining these statements, we can select all records from the vendors table where the value of the country column ends with an "a".
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The Earth system is powered by energy from two sources.
One source is the sun, which drives external processes that occur in the atmosphere, hydrosphere, and at Earth's surface.
Weather and climate, ocean circulation, and erosional processes are also driven by energy from the sun.
The Earth system is powered by two major sources of energy: the Sun and the planet's internal heat.
The physical, chemical, and biological processes that coexist on Earth are referred to as the "Earth system." The land, oceans, atmosphere, and poles make up the system. It includes the planet's natural cycles, such as the carbon, water, nitrogen, phosphorus, and sulfur cycles, as well as deep Earth processes.
The Earth orbits the Sun once a year and rotates once a day on its axis of rotation. This rotation axis is bent at 23.5 degrees relative to its plane of orbit around the Sun. As the Earth revolves around the Sun, the North Star follows the slope of the Earth's axis.
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How do the reource for electricity generation differ between the top and bottom region? How do you account for thee difference?
The differences in resources for electricity generation between the top and bottom regions can be attributed to a number of factors, such as the availability of renewable resources, the availability of non-renewable resources, the cost of energy production, and the infrastructure of the grid.
To account for these differences, electricity grids are divided into sections, or regions, in order to ensure that the same resources are available to all parts of the grid.
Additionally, electricity grids also use market mechanisms, such as auctions or tendering processes, to make sure that electricity is purchased from the most cost-effective sources available. This helps to ensure that the resources used to generate electricity are allocated in a way that is cost-effective and efficient.
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Which statement about the way Europeans settling in North America affected
American Indians is the best example of cultural divergence?
Many American Indians were forced to become Christians, while others were able to practice their traditional religions.
What is cultural divergence?Cultural divergence refers to the tendency of cultures to become increasingly dissimilar over time. For example, Amish people resist outside influences such as modern technology and clothing. and pop culture.
Futhermore, cultural convergence occurs when stories cross multiple media platforms and readers or viewers can comment on, alter, or otherwise respond to culture. Global convergence occurs when cultures that are geographically separated can influence one another.
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how can the philippines "upgrade" our economy given the strength of the global economy, especially the giant economies like the united states and japan?
The Philippines can upgrade its economy by implementing several strategies improving human capital through education and training programs that promote workforce development and competitiveness.
Encouraging foreign investment by creating a stable and predictable business environment and reducing barriers to entry for foreign firms.
Diversifying the economy away from its reliance on a few key industries, such as remittances and outsourcing, and towards new sectors, such as technology and innovation.
Building infrastructure to support economic growth, including transportation, communication, and energy systems.
Strengthening good governance, reducing corruption and promoting transparency in government processes and decision-making.
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which country is more democratic nigeria or south africa explain
While both Nigeria and South Africa are considered to be democratic countries, South Africa is generally considered to have a more established and mature democracy, while Nigeria is still working to strengthen its democratic institutions and practices.
Nigeria and South Africa are both considered to be democratic countries, but their level of democracy can be evaluated in different ways.
South Africa is considered to have a more mature and established democracy. It has a stable constitutional order and a long history of free and fair elections, which have resulted in peaceful transfers of power. South Africa also has strong democratic institutions, such as an independent judiciary and free media, which help to ensure accountability and transparency in government.
Nigeria, on the other hand, has a relatively young and fragile democracy. While it has made significant progress in recent years in terms of political stability and democratic reforms, the country still faces significant challenges in terms of corruption, ethnic and religious tensions, and political polarization. Nigeria has a history of military rule and has only recently transitioned to a democratic system, which has resulted in a relatively weak political and institutional framework.
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A neon lamp contains 9.76 x 1017 atoms of neon, Ne. How many grams of neon, Ne are in this same lamp?
Grams of neon, Ne in this same lamp are 0.0000327 g.
(9.76*10^17) (1mole Ne/6.02*10²³ atomsNe) (20.180 gNe/1moleNe)=0.0000327 g Ne
What is NeonNeon is the second lightest noble gas after helium.
This gas is reddish-orange when placed in vacuum tubes and in fluorescent lamps.
The cooling capacity of neon is 40 times that of liquid helium and 3 times that of liquid hydrogen (per unit volume).
Neon is a cheaper refrigerant than helium in most applications.
Although generally non-reactive (inert), this gas can form exotic compounds with fluorine in the laboratory.
It is not known for certain whether there are neon compounds in nature due to their non-reactive nature.
Although neon is the fourth most abundant element in the universe, Earth's atmosphere contains only 0.0018% neon.
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a wave with the height of 10 feet and a wavelength of 20 feet has a wave base of
Option (b), A wave that is 20 feet in wavelength and 10 feet in height has a 10 foot wave base.
What modifications do the wave undergo as it transitions from a deep to a shallow wave in terms of wavelength and water depth?Because they don't collide with the ocean floor when they do so, deep-water waves move at a constant speed regardless of the depth of the water. However, because of their interaction with the bottom, waves alter as they go closer to shallow water. The relationships between frequency and wave parameters include wave height, wave speed, and wave length.
The wave base is the depth at which the wave ceases to disturb the medium in any way. The wavelength of a wave's base has been discovered to be half that wavelength.
Therefore;
Wave base = wavelength/2
= 20 ft/2
= 10 ft
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The complete question is:
A wave with a height of 10 feet and a wavelength of 20 feet has a wave base of _____.
A. 40 feet
B. 10 feet
C. 5 feet
D. 20 feet
consider both maps. if a traveler set out on the southern road leaving new york city, to which city would he or she arrive after six days of travel?
Answer:
its hard because you didn't include a map but maybe charleston? i am not really sure
Explanation:
what is the most important natural resource in north africa and southeast asia?
The most important natural resource in North Africa and Southeast Asia is subjective.
The most important natural resource in North Africa and Southeast Asia depends on the specific countries and regions within these two regions. North Africa is rich in natural resources such as oil, natural gas, minerals, and fertile land for agriculture.
Southeast Asia is known for its abundant natural resources such as oil, natural gas, timber, minerals, and fertile land for agriculture. Additionally, both regions also have significant renewable energy potential and important water resources.
The exact resources that are considered most important will vary depending on the specific economic, social, and political conditions within each country. For example, a country heavily dependent on oil exports may consider oil to be the most important resource, while another country may prioritize agriculture or tourism.
Therefore, the most important natural resource in North Africa and Southeast Asia is subjective and varies by region and context.
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which is the best question to ask before developing a hypothesis about carbon dioxide and possible causes of climate change based on these data?
Before formulating a hypothesis about carbon dioxide and potential causes of climate change based on these data, the best question to ask is What historical events occurred in the late 1800\'s? The correct answer is option(a).
Climate change refers to unending shifts in hotnesses and weather patterns. These shifts grant permission to be organic, but since the 1800s, human endeavors have exited the main chauffeur of mood change, generally on account of the blazing of hydrocarbon deposits (like bitumen, lubricate, and gas) that produce heat-tricking vapor.
The experiences of the controlled finding of climate change started in the early 19th century when hailstone ages and added natural changes in paleoclimate were first doubtful and the normal dirtiness was first labeled. The potential future belongings of worldwide atmosphere change involve more repeated wildfires, more protracted periods of drought in a few domains, and an increase in the event and force of sultry storms.
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The complete question is:
Scientists have conducted extensive investigations on the atmospheric changes that have occurred over the last 200,000 years. Gases in the atmosphere are imprisoned during snowfall events and remain stored in ice. Carbon dioxide is linked to global climate change. Atmospheric concentrations of other greenhouse gases such as methane are measured in smaller amounts (parts per billion) and are not represented on the graph. Which of the following is the best question to ask before developing a hypothesis about carbon dioxide and possible causes of climate change based on these data?
a) What historical events occurred in the late 1800\'s?
b) Who was involved in the late 1800s?
c) which gases are involved?
what happens to the length of day in atlanta as we progress from the summer to winter seasons?
The Correct option (b) In the Northern Hemisphere, the shortest days are at the winter solstice in December.
The sun angle is highest before and after the summer solstice, with the most daylight minutes. The length of daylight decreases as the sun moves lower in the sky. The maximum daily temperature in Albuquerque occurs nearly three weeks later, in mid-July.
The Northern Hemisphere tilts the furthest away from the Sun around December 21. This is known as the northern winter solstice, and it is the time of year when we have the least amount of daylight.
During the year, as the Earth circles the Sun, half of the Earth receives more or less sunlight than the other half. The northern half of the Earth, where we live, tilts towards the sun during the summer months.
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Full Question :What happens to the length of day in Atlanta as we progress from the summer to winter seasons?
In the Northern Hemisphere, the longest days are at the winter solstice in December.
In the Northern Hemisphere, the shortest days are at the winter solstice in December.
It stays the same.
In the Southern Hemisphere, the longest days are at the winter solstice in December.
How do Hawaii and Yellowstone also prove continental drift ?
Magma rising through the lithosphere causes the formation of the Yellowstone hotspot.
What do Yellowstone and Hawaii have in common?
Similar to the Hawaiian hotspot, magma rises through the lithosphere to create the Yellowstone hotspot. This hotspot's location beneath a substantial continental plate sets it apart from other hotspots.
As a result of Hawaii's location on a narrow oceanic plate, magma that rises to the top might readily breach the plate.
How do the Hawaiian Islands support the idea that plates are moving?
Such a hot point developed in the Pacific Plate's center, causing the Hawaiian Islands to form.
The plate is moving, though the hot spot itself is fixed. So, as the plate passed over the hot area, the series of islands that makes up the Hawaiian Island chain was created.
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Studies of the origin of life on Earth help us to consider what would be required for life elsewhere in the Universe. Which of the following is most likely to be true of extraterrestrial life?
O Carbon will act as the backbone for organic molecules.
O Light from a nearby star will make photosynthesis possible.
O Oxygen will be used to convert energy in cells.
O Water will not be required to sustain life.
The most likely statement that is true of extraterrestrial life is "Carbon will act as the backbone for organic molecules."
The presence of carbon-based life on Earth suggests that carbon-based molecules are an important aspect of life and are likely to be found in other places in the universe. However, it is not certain whether other elements such as light from a nearby star, oxygen, or water would be required for extraterrestrial life, as these conditions may not be present on other planets or moons in the same way as they are on Earth.
Ultimately, the study of life on Earth provides a baseline for understanding the conditions necessary for life, but the discovery of extraterrestrial life may challenge our current understanding and ideas.
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What is the source of most of the lava that flows down the Hawaiian shield volcanoes? Select the best answer.
A) the various cinder cones scattered widely across the shield volcano surface
B) summit crater
C) rift zones
D) summit caldera
Rift zones are the primary source of the lava that pours down the Hawaiian shield volcanoes. The correct answer is option(c).
Scientists had mapped a wide variety of distinct lava flows on these Hawaiian shield volcanoes. These floods originated from these rift zones and volcanic flanks. The rift zones of a volcano are areas that extend from its central vent or vents and can be identified by a variety of fissures or vents. These fissures are where the majority of the lava that flows down Hawaiian shield volcanoes comes from.
Summit craters and calderas can also contain lava, but they do so less frequently than rift zones. Although cinder cones are capable of acting as lava sources, Hawaiian shield volcanoes tend to have fewer and smaller ones than other types of volcanoes.
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