Which of the following describes why soils are important in environmental geology?
A. soil erosion worldwide is contributing to sea level rise.
B. soil erosion is affecting the hydrologic cycle and contributing to climate change.
C. soil pollution is causing dangerous toxins to enter the food supply.
D. soil loss will affect our ability to grow food as the population increases.
E. all of the answers listed here.
Answer: D
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Currently, glaciers cover approximately ________ percent of the earth's surface.
A. 10% B. 1% C. 50% D. 30%
The home of the Rocky Mountain Institute demonstrates that
a. homes in sun-intense areas can do without central heating systems b. solar energy alone can heat a home c. little natural gas is needed to heat a home compared to coal burning furnaces d. energy efficient design and renewable energy alternatives can work in cold climates e. using energy efficient design is very expensive
The technology in which parabolic mirror arrays are placed in a desert with a water-filled pipe traversing the array is used to capture the renewable energy of
A) nuclear fuel. B) the sun. C) the wind. D) precipitation.
What do these channels indicate about past events on Mars?
A. Glaciers once covered the entire planet. B. There were explosive volcanic eruptions. C. The surface once had running water that eroded and deposited sediment. D. Strong winds eroded into a series of volcanic layers.