What is an important consequence of physical weathering?
A. It destroys harmful bacteria.
B. It increases surface area, exposing more of the rock to chemical reactions.
C. It removes toxic heavy metals.
D. It purifies groundwater.
Answer: B
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Biological sediments are the most abundant sediments in total volume in the ocean due to the high productivity of
organisms along the continental shelf. a. True b. False
La Niña events frequently follow El Niño events
Indicate whether the statement is true or false
Drainage density refers to
A) the thickness of the water in the stream. B) the number of channels in an area. C) a measure determined by dividing the length of all the the channels by the area of its drainage basin. D) the arrangement of channels in a given area.
The energy that drives the longshore currents is derived from ____
A) hurricanes and cyclones B) major surface currents, such as the Gulf Stream C) monthly high tides D) wind waves approaching the beach front at an angle