Evaporation and transpiration from continental areas amount to only about ____ percent of the nearly 1.5 billion gallons of water vapor that annually evaporate into the atmosphere.?
a. ?15
b. ?20
c. ?25
d. ?30
e. ?35
ANSWER: a
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Who formulated the fundamental laws of motion?
A. Galileo B. Newton C. Aristotle D. Coriolis
Saying that the ocean is buffered means that it: a. can't get too acidic or too alkaline
b. is alkaline. c. is neutral. d. is acidic.
movement from one part of something to another
What will be an ideal response?
How does deforestation by fire or human activity contribute to mass wasting?
a. It allows the wind to blow across the slopes, imparting a stress that triggers landslides. b. It allows farming activity that exposes soil to erosion and mass wasting. c. It kills tree roots that help hold the slopes in place, allowing mass movement. d. It allows excess rainfall runoff to erode the landscape, triggering mass wasting.