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Question
Experts are particularly concerned about the U.S. depletion and lack of national reserves of manganese, cobalt, chromium, and platinum because they are nonrenewable ____ resources.
a. security metal
b. strategic metal
c. biogenic metal
d. rare metal
e. trace metal
Answer
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Related questions
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a. two
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a. True
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a. free market
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a. True
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Ecological economists consider natural capital to be important but not indispensable because they believe we can find substitutes for essentially any resource that we might deplete or degrade.
a. True
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Natural, human, and manufactured capital are the three types of capital used in most economic systems.
a. True
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Stewardship is based on an idea that nature exists for all species alike and our success depends on how well we manage the earth and nature.
a. True
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It can take 400 to 1,000 years to break down ____ that end up in landfills or the ocean.
a. disposable coffee cups
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c. glass bottles
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a. background coevolution
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You are an evolutionary entomologist. You have observed beetles that can raise their abdomens and give off a defensive chemical that generally repels predators. You discover a new species of beetle that raises its abdomen in a threatening way similar to the first species, but no defensive chemical is given off. You are most likely to characterize this defensive strategy as a form of ____.
a. camouflage
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a. interspecific competition
b. mutualism
c. parasitism
d. predation
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