What is this bowl-shaped, glacially carved feature?
A) Hanging valley
B) Arête
C) Cirque
D) Continental ice sheet
C) Cirque
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If the area shown in this figure is 240 kilometers wide and the oldest crest is 4 million years old, what was the approximate rate of seafloor spreading across this ridge?
A) 0.24 kilometers per million years
B) 2.4 kilometers per million years
C) 60 kilometers per million years
D) 240 kilometers per million years
E) 960 kilometers per million years
Animals that ingest sediment and extract the nutrients from it are called _________________________. Fill in the blank(s) with the appropriate word(s)
When a country such as the United States exports subsidized grains, it hurts a developing country importing the grain by
A) decreasing production of the grain in the developing country. B) increasing domestic production of grains in the developing country. C) increasing the demand for meat in the developing country. D) causing more people to turn to subsistence farming in the developing country.
Lake tides, at their peak, are usually no more than ________ of rise and fall
A) 2 inches B) 2 feet C) 4 feet D) 10 feet E) 20 feet