The single greatest threat to irrigated agriculture is
A) groundwater depletion.
B) global warming.
C) flooding.
D) pollution from hydroelectric dam projects.
A
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What happens when rocks oxidize near Earth's surface?
A) minerals in the rock release oxygen that can break down adjacent rocks B) oxygen combines with water to create weak acids that weather rocks C) minerals, especially those with iron, combine with oxygen D) oxygen combines with silica to make quartz
How does the mean temperature relate to the amount of water vapor in
the atmosphere? Explain. What will be an ideal response?
For a region in the solar system relatively close to the protosun (near present-day Mercury, for example) what materials would you anticipate to condense during cooling?
What will be an ideal response?
Sediment accumulation in the deep ocean tends to be greater than near the continental margins.
Answer the following statement true (T) or false (F)