Ecologists warn that human population growth, economic development, and poverty are exerting increasing pressure on the earth's ecosystems and on the ____ it provides.
A. cultural incentives
B. abundant lifestyle
C. technological growth
D. ecosystem services
E. scientific research
Answer: D
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A longshore current involves all of the following except
A) effective wind direction. B) effective wave direction. C) waves of transition. D) transportation of large amounts of sand and coastal materials.
Joe Geologist discovers a vein made up primarily of quartz but also containing significant amounts of pyrite as well as chalcopyrite. He knows better than to fall for fool's gold, and decides to ignore the vein
Did he make the right decision? Explain.