In cultural eutrophication, game fish die from
A. acid deposition.
B. suffocation from lack of oxygen.
C. toxic substances in the water.
D. salinization.
E. habitat loss.
Answer: B
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What is the natural growth rate in Europe?
A) extensive population decline in every country B) uniformly negative rate of growth C) very slow rate of growth D) moderate rate of growth E) extremely high rate of growth
The maximum pressure range of the atmosphere, as defined by the highest and lowest pressures ever recorded, is between:
A) 720-1335 millibars. B) 870-1085 millibars. C) 0-1000 millibars. D) 975-1035 millibars. E) 660-1335 millibars.
How is the shape of Earth affected by its rotation?
A) Earth is perfectly round. B) The poles are further from the center of Earth than the equator. C) The equator is further from the center of Earth than the poles.
Throughout any introductory examination of ecosystems and environmental sustainability, the importance of human population numbers is cited. Currently, the world and U.S. populations are closest to ________
A) 3 billion; 300 million B) 9 billion; 400 million C) 7 billion; 500 million D) 7 billion; 200 million E) 7 billion; 300 million