Where did most of the water on Earth likely come from?
A. Water came equally from comets and out-gassing.
B. Water came mostly from comets.
C. Water came mostly from out-gassing.
Answer: C
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The force that would cause a stationary parcel of air to begin to move horizontally is called the:a
Coriolis force. b. pressure gradient force. c. centripetal force. d. frictional force.
Which of the following is created when a glacier acts as a dam, blocking the flow of a river or melting glacial water?
A) playas B) proglacial lakes C) cirques D) pluvial lakes
Pesticides in the United States are registered through the ________
A) FDA B) PRA C) USDA D) EPA E) BLM
An example of a primary effect of drought:
A. rolling blackouts. B. low dissolved oxygen content in reservoirs. C. decrease in tourism. D. drop in groundwater levels.