Barrons AP Environmental Science

(D) The number of recreational visitors in all national forests in 1993 was 730 million. By the year 204 ...

(A) Only 20% of the worlds’ original forests remain intact. In New England, the first area to be colonized ...

(C) There are about 1.5 billion cattle on Earth. They graze on 25% of the landmass and consume enough grain ...

(C) Water erosion is about half of the problem. ...

(E) See the “Extraction” section in this chapter for a more detailed explanation. FREE-RESPONSE ANSWER 10 Total ...

The description of these predictions should include the recognition that a population demonstrating exponential growth ...

fossil fuels in production (fertilizers, herbicides, mechanization) climate change which can reduce and alter natural hab ...

8: Energy MULTIPLE-CHOICE ANSWERS AND EXPLANATIONS ...

(C) Renewable resources are those resources that theoretically will last indefinitely either because they ...

(E) At the current rate of consumption, global oil reserves are expected to last another 45–50 years. Wit ...

(B) Net-useful energy is defined as the total amount of useful energy available from an energy resource ove ...

(D) The key word in this question is “NOT.” To foster a sustainable energy future, fuel efficiency standar ...

(C) World oil demand is increasing at a rate of about 2% per year. Known U.S. oil reserves are projecte ...

(B) More than 80% of the world’s total proven coal reserves are located in just 10 countries, with the ...

(A) Nonrenewable resources of energy, such as natural gas or oil, have had recent and dramatic price in ...

(C) During the 1990s, wind power experienced an annual growth of 22%. Wind power supplies less than 2 ...

(D) An incandescent lightbulb is only 5% efficient as compared with a fluorescent lightbulb at 22%. ...

(E) The major fuel used in fusion reactors, deuterium, could be readily extracted from ordinary water. ...

(B) The second law of thermodynamics states that when energy changes from one form to another, some of ...

(A) A low-throughput society, also known as a low-waste society, focuses on matter and energy efficiency ...