Because so many other countries including usa depend on oil.
Answer:Surface water seeps into the ground and recharges the underlying aquifer—groundwater discharges to the surface and supplies the stream with baseflow.
Explanation:
What are some effects of groundwater depletion? Pumping has removed water from storage in basalt aquifers and caused declines in many areas of the Columbia Plateau. The most severe consequence of excessive groundwater pumping is that the water table, below which the ground is saturated with water, can be lowered.
The author supported the central idea by illustrating the choice that Lewis took to tackle racism.
<h3>What is a central idea?</h3>
It should be noted that a central idea simply means the man idea that can be found in a literary work.
In this case, the main idea is about the black students who protested against racial segregation.
Learn more about central idea on:
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The answer is definitely B