17. If the cost of separating a mineral from waste rock becomes too great, the mineral may no longer be classified as
an ore. This happens because
a. the mineral can no longer be mined at a profit
b. the mineral has lost its usefulness
c. the demand for the mineral has decreased
d. none of the above

Answers

Answer 1

Answer:

A. the mineral can no longer be mined at a profit.

Explanation:

Answer 2

In the case when the separating cost a mineral from the wastage cost so this should occur at the time when the mineral should not be longer be mined at the profit.

What is a mineral?

The mineral should arise at a non-organic element or the compound that should be along with the internal structure also the attribute of the composition of the chemical should be considered. Its examples should be mics, quartz, etc. Now in the case when the separating cost a mineral from the wastage cost so it should be too big so option a is correct.

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Related Questions

Ja’ron lives near a river that flows through farmland. He notices that the river has become more polluted over the years. The water that was once clear is now sometimes cloudy and has an unpleasant odor. What is the most likely cause of the pollution in the river? A. heat B. oil and gasoline C. industrial wastes D. pesticides and fertilizer

Answers

Answer: pesticides and fertilizer

Explanation: He lives in an area of farm land so, big crops are grown and to keep the bugs off the plants, farmers use pesticides. Then what happens is when it rains, the excess runs off into the river and pollutes it.

Given what you know about genetics and molecular biology, describe another way you might be able to identify specific bacteria

Answers

Answer:

Morphology

Explanation:

Bacteria are usually identified by using standard molecular biology procedures, being the Polymerase Chain Reaction (PCR) the most widely used technique for this purpose. The identification by PCR consists of the amplification and visualization of specific DNA sequences that can be obtained from different individuals, strains, species, etc. However, it is also possible to identify bacteria with a microscope, i.e., by observing taxonomical characteristics that allow to differentiate specific bacteria.

Please answer fast!
Which of the following is not a reason that small societies can maintain stability in the long term better than larger societies?
a. Smaller societies have a smaller demand for resources,
b Smaller societies can be governed by internal controls more effectively than larger societies.
Smaller societies rely more heavily on legislation and military forces.
d. None of the above
С. Smaller societies rely more heavily on legislation and military forces.
D. None of the above.

Answers

Answer:

"None of the above" are not reasons why small societies can maintain stability in the long term better than larger societies, since all of them have a certain merit.

Explanation:

The False reason  why small societies can maintain stability in the long term better is : ( C ) smaller societies rely more heavily on legislation and military forces

Advantages of Small societies

Small societies can maintain more stability due to certain factors which are peculiar to them and some of these factors are; smaller demand for resources, they can be governed more effectively by internal controls because small societies are less complex. they do not rely heavily on legislation and military force as seen in larger societies with some complexities.

Hence we can conclude that The False reason  why small societies can maintain stability in the long term better is : ( C ) smaller societies rely more heavily on legislation and military forces

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Water flows up through vessels because water is sticky due to cohesion and adhesion.
A.Capillary Action
B.Surface Tension
C. Universal Solvent

Answers

Answer:

Capillary Action

Explanation:

Water molecules are attracted to the molecules in the wall of the glass container.Water molecules stick together because of polarity; a water molecule has a slightly positive end and a slightly negative end. Opposite charges attract, creating a cohesive force. Water molecules are attracted to each other. Which are basically the definitions of adhesion and cohesion.

Which characteristic makes fungi similar to plants?

Answers

Answer:

They are both non-mobile and eukaryotic.

Explanation:

Plants and fungi both remain stationary. They do not move around for their food. Another similarity is that they both are made up of eukaryotic cells, meaning they contain a nucleus.

Answer:

While both are eukaryotic (both have nucleus) and don't move, plants are autotrophic, making their own energy - and have cell walls made of cellulose, but fungi are heterotrophic, taking in food for energy (so they eat dead and decaying food), and have cell walls.

Explanation:

Hope this helps!

Why do land plants need to conserve water

Answers

Answer: Some arid-climate plants are able to conserve water because of their reduced leaf size. Less leaf surface area results in reduced water loss through the epidermis. Small leaves have fewer stomata than larger leaves, and that adaptation also reduces water loss.

true or false aerobic cellular respiration produces more atp then anaerobic cellular respiration

Answers

Answer:

true

Explanation:

What are examples of two
species dividing up the parts of a habitat?

helpppp plzzzz​

Answers

Answer:

In a hot spring in Kamchatka, Russia, the two groups of genetically indistinguishable microbes parted ways. They began evolving into different species—despite the fact that they still encountered one another in their acidic, boiling habitat and even exchanged some genes from time to time, researchers report.

Hope this helps

What do heating systems, cooling systems, and heat engines have in common?

They deactivate thermal energy.
They create thermal energy.
They destroy thermal energy.
They transfer thermal energy.

Answers

Answer:

They transfer thermal energy.

Explanation:

Energy can not be created or destroyed. Energy cannot be deactivated.

Answer: thay transfer thermal energy

Explanation:

Explain your hypothesis and how you determined it.

Answers

Answer:

A hypothesis is a tentative, testable answer to a scientific question. Once a scientist has a scientific question she is interested in, the scientist reads up to find out what is already known on the topic. ... A hypothesis leads to one or more predictions that can be tested by experimenting

Explanation:

my friend moved to neverland and now im sad

:(

Fun fact

Bananas

The process by which a metabolic pathway is shut off by the product it produces is called.

Answers

Answer:

Feedback inhibition

Help.. Psychological drug dependence means that
a. the body cannot function properly without a drug
b. a person has an emotional need for a drug
c. a person will become mentally ill from a drug
d. withdrawal will occur when the drug is stopped

Answers

Answer:

b. a person has an emotional need for a drug

Identify characteristics of fungi

Answers

Answer:

Characteristics of Fungi. Following are the important characteristics of fungi: Fungi are eukaryotic, non-vascular, non-motile and heterotrophic organisms. They may be unicellular or filamentous. They reproduce by means of spores. Fungi exhibit the phenomenon of alternation of generation.

Choose an organism to use as an example.

Answers

Answer:

Bacteria

Explanation:

humans, plants, fungi and bacteria are a type of organism

Do the hawaiian honeycreepers provide evidence to support Darwin’s theory of evolution by natural selection ?

Answers

Answer:

Yes.

Explanation:

This kind of bird, that is found at the islands of Hawaii have different kinds of beak. The adaptive radiation of those birds resulted on specialized forms of beaks and also, according to the Darwin natural selection theory, an ancestor of those birds probably had one kind of beak, but the different niches in the archipelago of Hawaii has selected different forms of beak leading to the actual species.

Yes, Hawaiian honeycreepers provide strong evidence that supports the Darwin's theory of natural selection.

Darwin's theory of evolution by natural selection:

Hawaiian honeycreepers support the Darwin's theory of natural selection as different species of honeycreepers are adapted to fit into distinct surroundings. They are the endemic species, which inhabit the Hawaiian archipelago similar to the Darwin's finches that inhabited the Galapagos Islands.

The honeycreeper species of Hawaii has evolved the shape of their beaks in an efficient way in order to consume the nectar of distinct kinds of flowers on each of the Island. The beak shape of the honeycreepers fit to the flowers so that distinct species of bird can draw nectar more effectively based on the flowers found on each of the Island.

The species of Hawaiian honeycreepers demonstrate a good example of evolution by natural selection, that is, distinct species of the bird inhabit distinct islands in order to adapt with the specific environmental conditions.

Thus, it can be conclude that Hawaiian honeycreepers offer strong evidence to support the Darwin's theory of evolution by natural selection.

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What is the most likely result of a large asteroid hitting Earth?

a. Short- and long-term environmental changes

b. Only long-term environmental changes

c. Death of all life in its path

d. Introduction of new life to the planet

Answers

Answer:

your answer is c

Explanation:

I had this question yesterday

The most likely result of a large asteroid hitting Earth is the death of all life in its path (Option c).

What is an asteroid?

An asteroid is a celestial body that travels into space, which may eventually collide with the Earth.

The collision of an asteroid of average size (>200 meters) may have devasting effects on life on Earth.

The major extinctions on the Earth have been associated with the collision of asteroids.

In conclusion, the most likely result of a large asteroid hitting Earth is the death of all life in its path (Option c).

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Rosa has a vegetable garden. She places earthworms, which are decomposers, in the garden soil.
What is Rosa most likely trying to do?
prevent insects from eating the plants
create usable food energy for the plants
enrich the soil with nutrients
kill the bacteria in the soil

Answers

Answer:

enrich the soil with nutrients

Explanation:

Answer:

C

Explanation:

I did it

What is required for both the light-dependent and light-independent reactions to proceed?
energy
CO2
water
ATP and NADPH

Answers

Answer:

A.Energy

Explanation:

I Got it right :_

Answer:

A.)energy

Explanation:

i took the test : )

Explain how embryology can be used as evidence for evolution

Answers

Answer:

the study of the development of the anatomy of an organism to its adult form, provides evidence for evolution as embryo formation in widely-divergent groups of organisms tends to be conserved. ... Another form of evidence of evolution is the convergence of form in organisms that share similar environments.

HOPE IT HELPS : D

Explanation:

Notice in the image of the plant that both oxygen and carbon dioxide enter and exit the plant. Using what you know about photosynthesis and cellular respiration, explain what is happening with regard to these two gases.

A) Unlike animals, plants use carbon dioxide in cellular respiration and produce oxygen.
B) Plants, as autotrophs, only undergo photosynthesis and both use and produce oxygen and carbon dioxide in this process.
C) Plants require oxygen for photosynthesis and produce carbon dioxide. Plants then use the carbon dioxide produced in cellular respiration, releasing oxygen as a byproduct.
D) Plants require carbon dioxide for photosynthesis and produce oxygen as a byproduct. Plants then use the oxygen released in cellular respiration, producing carbon dioxide as a byproduct.

Answers

Answer:

D

Explanation:

Plants first go through photosynthesis, using sunlight and carbon dioxide. This creates glucose. It then releases oxygen into the atmosphere as a byproduct. To convert the glucose into usable energy, the plant goes through cellular respiration, which converts oxygen and glucose into ATP.

Because the fish are now able to swim in deep water, their ___________ in shallower water will have less food. Likewise, competition for food among deep-water fish that eat the same types of food will _____________.

Answers

Answer: Predators, increase

Explanation:

Because the fish are now able to swim in deep water, their Predators in shallower water will have less food. Likewise, competition for food among deep-water fish that eat the same types of food will increase.

Predation is the biological term used to describe the interaction between organisms whereby one  organism which is a Predator kills and devour another organism which is its prey.

In shallow waters, Fishes are more susceptible to predators like man, eagle etc who catch and kill them and  because of that many of these fishes have acquired anti--predator adaptations to prevent being caught and killed and so are now able to swim in deep waters leading to the predators having less food. The fishes who can now swim deep into waters  will increase the already populated deepwater and will cause an increase in competition for the fishes that eat same type of food with the new fishes

What is displacement of metals?

Answers

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Featured snippet from the web
Displacement reactions. Displacement reactions occur when a metal from the electrochemical series is mixed with the ions of a metal lower down in the electrochemical series. The atoms of the more reactive metal push their electrons on to ions of the less reactive metal. An example can be seen below.
It occurs when a metal from the electrochemical series is mixed with ions of a metal lower down in the electrochemical series.

which structures in male produce fluids that mixes with sperm to form semen

Answers

Explanation:

The testicles. Lol or Penis. Imma try to be mature

Which of the following terms would be an appropriate title for the level of complexity labeled X?
A : Cell
B : Organ
C : Organism
D : Tissue

Answers

The answer is C. Organism.

Answer:

Organism

Explanation:

A leopard frog is the organism, and it is one of the highest levels of complexity. Cell to Tissue to Organ to Organism.

What are some types of biotechnology??

Answers

Types of Biotechnology
Medical Biotechnology. Medical biotechnology is the use of living cells and other cell materials for the purpose of bettering the health of humans. ...
Agricultural Biotechnology. ...
Nutrient Supplementation. ...
Abiotic Stress Resistance. ...
Industrial Biotechnology. ...
Strength Fibres. ...
Biofuels. ...
Healthcare.

Answer and Explanation:

There are a few different types of biotechnology.

One is medical biotech. Essentially, this branch is used to help improve the wellbeings and helaths of people. It involves a lot of DNA in helping to find cures for various diseases. Some examples of advancements in this field are vaccines and antibiotics.

Another is agricultural biotech. In the agriculture industry, farmers are continuously searching for ways to increase crop yield and quality, which delves into the topic of genetic modification and engineering. For example, scientists are breeding certain plants or adding certain genes to make offspring that is hardier and more pest-resistant.

Those are two main types of biotechnology.

What are the possible anticodons in the tRNA molecules that carry serine to the ribosome?

Answers

The possible tRNA for serine are UCU, UCC, UCA, UCG

Which of the following is a nonrenewable resource?


Answer choices
Wind
Geothermal
Coal
Solar

Answers

Answer:

coal

Explanation:

Answer:

Coal

Explanation: Coal is a fossil fuel. It comes from the remains of plants that died about 100 to 400 million years ago. Coal is a non-renewable energy source because it takes millions of years to form.

Question 3 of 10
What is a B cell?

Answers

the extra cell in your blood cells

why is higher temperatures considered part of climate change?

Answers

Answer:

Higher temps. are considered part of climate change because of global warming and the green house effect. The Co2 or Carbon dioxide in the air causes the sun's heat to be trapped within the Earth's atmosphere.The heat being trapped makes the Earth gradually heat up. Hope this helps.

Five petals
Use the dichotomous key to identify this flower.
N
Starflower
Each petal separated into
two parts
Y
N
Chickweed
Long, thin petals
Photo by Peter Corbett
Y
N
This flower belongs to a
Common strawberry
Bowman's root

Answers

Answer: Common strawberry

Explanation: I just did the question and got it right.

This flower belongs to a Common Strawberry.

I did the quiz and got this question correct.

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Which compound inequality is equivalent to the absolute value inequality |b| greater than 6? 6 > b and b > 6 b > 6 or b < 6 6 < b and b > 6 b < 6 or b > 6 Why was Mero a key city to the Kingdom of Kush? Farah is an engineer with an idea for a flexible solar energy material that would have a wide range of military and civilian applications. She estimates that she will need approximately $300,000 to develop a prototype. Friends and family could provide about $75,000. She contacts Natalie, an angel investor, for this purpose. In this case, which of the following is likely to be true?a. Farah is unlikely to expect more than just financial support from Natalie.b. Farah is likely to receive a report from Natalie that is more thorough than those by formal venture capitalists.c. Natalie is likely to be a wealthy individual with expertise in the field.d. Natalie is unlikely to be a private investor. Marta,no_tan difcil. Aqu hay mucha comida buena.F.seasG.eresH.soyJ.ests Answer ASAP PLZ!!!! I need help (>~ Describe the process for calculating the volume of a cylinder. Derek uses a 52 inch flat steel bar that weighs 10.4 lbs to make a rack in the garage. Find the weight of a 67-inch steel bar? When you increase the length of your workout, you are increasing ___________. Suppose that initially, the economy is in long-run macroeconomic equilibrium at point A. If there is increased pessimism about the future of the economy, the AD curve will shift from . The new short-run macroeconomic equilibrium occurs at point A point B point C . Long-run adjustment will shift the SRAS curve from SRAS 0 to SRAS 1 SRAS 1 to SRAS 0 as workers adjust to lower-than-expected prices. The new long-run macroeconomic equilibrium occurs at point A point B point C . Assume that the probability of a driver getting into an accident is 5.7% andthat the average cost of an accident is $24,500. If the driver's insurancepremium is $1686.50, what is the overhead cost for the insurance companyto insure the driver?A. $256B. $190C. $290D. $260 last week caroline worked 8 hours each day and she worked 5 days that week she earned $440 pounds so per hour she earned 11 this week she is going to work 7 hours each day for 4 days work out the percent reduction which fraction is equal to 1/28? As the caravan crosses the Sahara, Santiago and the Englishman each make an effort to gain new insights by practicing the other's method of learning: Santiago reads the Englishman's books about alchemy, and the Englishman spends several days observing the caravan and the desert. When the Englishman asks Santiago what the boy learned about alchemy from reading his books, Santiago sums up his reading in a few short sentences (on page 83). What does he say he learned? A company is hosting an event for its employees to celebrate the end of the year. It asks the employees whether they prefer a lunch event or a dinner event. It also asks whether they prefer a catered event or a potluck. The results are shown in the two-way table. What is the median of the following numbers: 120, 35, 42, 119, 120.5, 99, 72 ? * A chocolate wrapper is 6.7 cm long and 5.4 cm wide. Calculate its area up toreasonable number of significant figures. need helpASAP will give 20 points! Whitney is making a strawberry cake for her brother's birthday. The cake pan is a right rectangular prism cm20, wide by cm28, long. Whitney puts 1848 cm cubed of batter into the pan. You are evaluating the effect of different types of fertilizers on plant growth. You plant 12 tomato plants and divide them into three groups, where each group contains four plants. To the first group, you do not add fertilizer and the plants are watered with plain water. The second and third groups are watered with two different brands of fertilizer. After three weeks, you measure the growth of each plant in centimeters and calculate the average growth for each type of fertilizer. Identify the independent variable, dependent variable, control group, and experimental group from this experiment? When doing CPR on an adult, you should?