Which of the following human activities has been most problematic for wetlands around the world?
A) Boat traffic that causes excess oil and gas to be dumped in waterways
B) The alteration of ocean current circulation resulting in erosion of wetlands
C) Eutrophication caused by humans dumping pollutants into water
D) The draining and alteration of wetlands for agriculture and urban development
D
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In 1596, the first person to write about the possibility of continental drift was ________
A) Hess B) Darwin C) Ortelius D) Einstein E) Aristotle
A meteorite is
A) a small comet B) a large meteoroid C) a meteoroid that has entered the Earth's atmosphere D) a meteoroid, asteroid, or comet that strikes the Earth's surface
On this map, identify which letter is over a mid-ocean ridge.
A. A B. B C. C D. D E. Feature is not labeled.
What is the total mass of air inside the average house at 21°C?
Find out how much water vapor you would need to add to make your whole house comfortable. The average American house contains 544 m3 of air, and at 21°C, 1 m3 of air has a mass of 1.2 kg. What will be an ideal response?