What is the origin of curved ridges (R on this figure) in the Great Lakes area?
A. piles of sediment deposited by retreating glaciers
B. remnants of a meteoroid impact
C. folds produced during a continental collision
D. paths of ancient rivers
Answer: A
You might also like to view...
How much of the world's food is produced on irrigated land?
A. almost half B. less than 10% C. almost all D. none
Most surface winds in the Tropics ________.
A - come from the west B - originate in the Australian desert C - come from the east D - originate in the Amazon basin E - originate in the Sahara
The decomposition of rock from exposure to water and atmospheric gases is called
A. deposition B. mechanical weathering C. transportation D. chemical weathering
As the discharge of a stream increases, which of the following also happens?
A) Stream channels narrow, become shallower, and lose velocity. B) The rate of flow decreases. C) Channel width increases but channel depth decreases. D) Width, depth, and velocity all increase.