GRACE is a German/NASA project that monitors ________
A) ocean salinity
B) biomass
C) rainfall
D) groundwater levels
E) areas of lakes
Answer: D
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Which of the following features is NOT present along the Colorado River?
A) Delta B) Entrenched meanders C) Tributaries that start in high mountains D) Evidence for large prehistoric floods E) All of these are present.
Lakes lying in granite basins, such as those in the northeastern U.S., tend to become acidified by acid rain more readily than lakes lying in limestone basins, such as those found in the midwestern U.S. Why is this so?
A) The granite contains acidic minerals that dissolve in the rain water and are added to the lakes. B) Since the acidified water cannot percolate through the granite, the acid in the lakes becomes more concentrated. C) The limestone, which is calcium carbonate, serves to neutralize the acid in the rain. D) There is more acid rain in the northeast than in the midwestern regions of the U.S.
What remains unchanged regardless of depth?
a. Wavelength b. Wave height c. Wave period d. Wave shape
A sequence of changes that reinforces the direction of initial change is known as ____________________ feedback
Fill in the blank(s) with correct word