Which of the following is NOT a problem being addressed by environmental scientists?
A. Providing clean drinking water.
B. Creating a better transportation system for food distribution to the populace.
C. Finding resources for a human population growing at almost 80 million people a year.
D. Assessing and finding solutions to climate change.
E. Creating processes that promote sustainability in everyday life.
Answer: B
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The National Park Service struggles to maintain a balance between
A) hunting in national parks and ecotourism. B) mining and logging in national parks and protection of the unique ecosystems. C) protecting unique ecosystems and permitting public access. D) hunting and the development of resorts in national parks.
Although the polar climates generally have small precipitation totals, they are considered humid. The reason for this is:
A) low temperatures mean only a small loss to evaporation. B) permafrost does not let the water escape. C) since there are no trees present, little or no water is lost because of transpiration. D) these regions have great reserves of underground water that can be used for irrigation. E) most of the precipitation falls in the winter.
?Numerous studies suggest that humans and other male animals may become feminized by exposure to endocrine disruptors.
Answer the following statement true (T) or false (F)
The Millennium Ecosystem Assessment primarily characterized human impact on
A) atmospheric carbon dioxide levels.
B) degradation of the ozone layer.
C) ecosystem services.
D) plate tectonics.