Of the three primary forms of subaerial volcanoes, cinder cones consist of a cone-shaped pile of tephra often formed in a single eruption.
Cinder cones, one of the three primary forms of subaerial volcanoes, are characterized by a cone-shaped accumulation of tephra that is typically formed in a single volcanic eruption. Tephra, consisting of fragmented volcanic material such as ash, cinders, and small rocks, builds up to create the distinct cone shape of these volcanoes. Unlike other types of volcanoes, cinder cones are often smaller in size and have a simpler structure. They are commonly found in volcanic regions and can provide valuable insights into past volcanic activity.
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Which of the following hazards due to earthquake shaking should you be prepared for near the urban area of San Francisco and Oakland? Not yet answered Select one O a. Breaking and falling glass windows O b. Crumbling and tumbling buildings and chimneys Points out of 1.00 Flag question C. Gas leaks and fires due to broken gas lines d. Little to no water supply due to severed water pipes and aqueducts the bring water to the Bay Area e. All of these f. None of these
The correct option is C. Gas leaks and fires due to broken gas lines. Gas leaks and fires due to broken gas lines are the hazards due to earthquake shaking that one should be prepared for near the urban area of San Francisco and Oakland in addition to breaking and falling glass windows.
Crumbling and tumbling buildings and chimneys, and little to no water supply due to severed water pipes and aqueducts that bring water to the Bay Area. It's important to be prepared for any possible emergency. Emergency preparedness kits should be packed and stored in a safe place, and family members should know where to meet in case of an earthquake.
It is advised to be aware of the area's evacuation routes and follow the instruction of the local authorities in the event of an earthquake or any other emergency situation. Moreover, it is important to keep your gas and electric appliances up to date and maintain them on a regular basis. This will help prevent gas leaks and fires that might occur due to broken gas lines.
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describe the differences between a meteor, meteoroid, and meteorite. include what they would look like or we would see as a consequence of each of them.
A meteor is a bright streak of light in the sky caused by a meteoroid entering the Earth's atmosphere. A meteoroid is a small rocky or metallic object that travels through space. A meteorite is a meteoroid that survives its passage through the atmosphere and lands on the Earth's surface.
A meteor, also known as a shooting star, is a phenomenon that occurs when a meteoroid, a small object usually ranging from the size of a grain of sand to that of a boulder, enters the Earth's atmosphere. As it travels through the atmosphere, the friction causes the meteoroid to heat up and create a glowing trail of light, which we observe as a meteor streaking across the sky. These meteors can be seen for only a brief moment, typically lasting only a few seconds or less.
A meteoroid, on the other hand, is the actual object that enters the Earth's atmosphere and causes the meteor. It is a solid piece of rock or metal that originates from various sources, such as asteroids or comets. Meteoroids can vary in size, with smaller ones burning up completely in the atmosphere, while larger ones may survive and reach the Earth's surface.
When a meteoroid successfully makes it through the atmosphere and lands on the Earth's surface, it is called a meteorite. Meteorites can be found in different forms, such as stony (made mostly of silicate minerals), iron (made predominantly of iron and nickel), or stony-iron (a combination of silicate minerals and metal). They often bear distinctive features from their journey through space and the intense heat of atmospheric entry.
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4. how much time passed between the earthquake just before the eruption and the eruption itself? 5. how high did the initial blast reach? 6. how far away were trees blown down? 7. what was the result of the heat from the blast melting the glaciers on the mountain? 8. how hot and how fast were the mudslides produced by the eruption? 9. what were the biggest obstacles to the rescue operations after the eruption?
Access to affected areas may be limited due to road damage or other logistical challenges.
4. The amount of time that passed between the earthquake just before the eruption and the eruption itself can vary depending on the specific volcanic event. It could be a matter of minutes, hours, or even days. 5. The height reached by the initial blast also varies depending on the volcano and its eruption style. Some eruptions can release ash and volcanic gases into the atmosphere, reaching heights of several kilometers.
6. The distance at which trees are blown down during an eruption depends on factors such as the strength of the explosion, the type of volcano, and the density of the surrounding forest. It can range from a few kilometers to several tens of kilometers away.7. The result of the heat from the blast melting the glaciers on the mountain can lead to the formation of lahars, which are volcanic mudflows. These lahars can be highly destructive, carrying large amounts of debris and causing further damage to the surrounding areas.
8. The temperature and speed of mudslides produced by the eruption can vary, but they are generally extremely hot and fast-moving. The exact temperatures and speeds depend on factors such as the volcanic materials involved and the terrain. 9. The biggest obstacles to rescue operations after an eruption can include dangerous conditions such as ongoing volcanic activity, ashfall, landslides, and unstable structures.
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given the rate of sand growth, how many years following 1928 (and its shoreline) do you think it would be before the breakwater and the shoreline joined together?
The breakwater construction began in 1915, and the sand grew by 1 meter annually. So, after 13 years of the breakwater construction, the shoreline was 13 meters further out from the pre-construction shoreline. In 1928, the shoreline was 13 meters further out than the original shoreline.
Therefore, after 13 more years, which is in 1941, the shoreline will have been 26 meters further out from the pre-construction shoreline. The breakwater was extended by 168 meters in 1941 and the sand would grow annually by 1 meter.
Therefore, it will take 168 years after 1941 to catch up with the shoreline if it were to continue growing annually by 1 meter. 168 years after 1941 is in the year 2109. Therefore, the breakwater and the shoreline will join together in the year 2109.
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Following a major Bay Area earthquake, you will be able to purchase fuel for your vehicle Select one O True O False Flag question Question 27 Answer saved Points out of 1.00 Flag question It is imperative that people check for natural gas leaks immediately following an earthquake, and if so, turn off gas lines Select one True O False Question 28 Answer saved Points out of 1.00 甲Flag question Household emergency water supplies should include at least 7 gallons per person. Select one O True False Question 29 Answer saved Points out of 1.00 甲Flag question If someone is driving a car, Tom's advice is to pull over safely where there are no structures or wiring above or close to the vehicle and wait inside Select one True O False Question 30 Answer saved Points out of 1.00 Flag question It is helpful and important to avoid using a mobile device at all following an earthquake, unless you are experiencing an emergency Select one: O True False
Following a major Bay Area earthquake, you will be able to purchase fuel for your vehicle is a false statement.
After an earthquake, it may be difficult to get to gas stations, and fuel may be scarce. Therefore, it is necessary to maintain a full tank of gas as much as possible because there is no guarantee that gas will be available after an earthquake. It is imperative that people check for natural gas leaks immediately following an earthquake, and if so, turning off gas lines is a true statement. Household emergency water supplies should include at least 7 gallons per person is a true statement. If someone is driving a car, Tom's advice is to pull over safely where there are no structures or wiring above or close to the vehicle and wait inside is a true statement. It is helpful and important to avoid using a mobile device at all following an earthquake unless you are experiencing an emergency is a true statement.
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Calcite, halite, and fluorite all have perfect cleavages, and they can be all be the same color. How would you distinguish among them? Discuss all common and different properties.
While calcite, halite, and fluorite can indeed exhibit perfect cleavages and similar colors, there are several properties that can be used to distinguish among them. Some of them are Cleavage, crystal system, hardness, density, reactivity, and fluorescence.
Cleavage:
Calcite: Exhibits perfect rhombohedral cleavage, meaning it breaks along three directions that intersect at angles other than 90 degrees.Halite: Shows perfect cubic cleavage, breaking along three directions at right angles to each other.Fluorite: Displays perfect octahedral cleavage, breaking along four directions that intersect at 90 degrees.Crystal System:
Calcite: Belongs to the trigonal crystal system, forming rhombohedral-shaped crystals.Halite: Falls under the cubic crystal system, forming cubic-shaped crystals.Fluorite: Belongs to the cubic crystal system as well, but typically forms octahedral or cubic-shaped crystals.Hardness:
Calcite: Has a relatively low hardness of 3 on the Mohs scale, meaning it can be easily scratched with a knife or a copper penny.Halite: Has a hardness of 2.5 on the Mohs scale, making it even softer than calcite.Fluorite: Has a hardness of 4 on the Mohs scale, slightly harder than calcite but softer than common minerals like quartz.Density:
Calcite: Has a density of about 2.7 grams per cubic centimeter.Halite: Has a relatively low density of about 2.2 grams per cubic centimeter.Fluorite: Has a higher density, ranging from 3.0 to 3.3 grams per cubic centimeter.Reactivity:
Calcite: Effervesces or fizzes vigorously when in contact with dilute hydrochloric acid due to its carbonate composition.Halite: Does not react with hydrochloric acid.Fluorite: Does not react with hydrochloric acid.Fluorescence:
Calcite: Exhibits strong double refraction and can exhibit fluorescence under ultraviolet (UV) light, typically showing various colors.Halite: Generally does not exhibit fluorescence.Fluorite: This is famous for its fluorescence, often displaying vibrant colors under UV light, such as blue, purple, or green.By considering these properties, it becomes possible to differentiate between calcite, halite, and fluorite. Cleavage angles, crystal shapes, hardness, density, reactivity with acid, and fluorescence can all provide valuable clues for identification.
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if you were tracking the number of hurricanes in the atlantic from 1 jun to 30 nov for each year, what control chart would you use?
If you were tracking the number of hurricanes in the Atlantic from June 1st to November 30th each year, a suitable control chart to use would be the u-chart.
The u-chart is a type of control chart used to monitor the count of defects or occurrences in a constant-sized sample over time. In this case, the number of hurricanes would be the count of occurrences, and each year would be considered a separate time period.
The u-chart helps identify variations or patterns in the count of hurricanes, allowing you to determine whether the observed counts fall within acceptable control limits or if there are any significant deviations or trends. By analyzing the data plotted on the u-chart, you can assess the stability of the process and identify any unusual or out-of-control conditions.
Using the u-chart for tracking the number of hurricanes in the Atlantic over time can provide valuable insights into the occurrence patterns, seasonal trends, and potential changes in hurricane activity, aiding in better understanding and managing these natural phenomena.
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