The answer is b and if not then try a
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Answer:
More, had a comparative advantage, produce more
Explanation:
They're used by humans for fossil fuel and in entertainment. They were not created by the human race, they were created through thousands of being underground and soft tissues quickly decompose leaving the hard bones or shells behind. Over time sediment builds over the top and hardens into rock.
The Environmental Protection Agency (EPA) was proposed by the President Nixon, this Agency followed a set of measures aimed to improve air quality, to avoid water pollution, to reduce the emission of dangerous fumes and to invest in preventive strategies against oil spills. The EPA had many responsibilities in the United States, two of them were to research about pollutants and to set standards for factories to reduce their impact on the environment.
