Multiple Choice
Which process is believed to have contributed to Earth's oxygen-rich atmosphere according to atomic theory?
7. Gases
The Ideal Gas Law
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Which of the following can result from excessive withdrawal of groundwater?
A
Enhanced soil fertility
B
Decreased atmospheric humidity
C
Land subsidence
D
Increased surface water levels
Verified step by step guidance1
Understand the concept of groundwater withdrawal: Groundwater is the water present beneath Earth's surface in soil pore spaces and in the fractures of rock formations. Excessive withdrawal refers to the removal of water from these underground sources at a rate faster than it can be replenished.
Consider the effects of groundwater withdrawal: When groundwater is excessively withdrawn, it can lead to a decrease in the water table, which is the upper surface of the zone of saturation where the soil or rocks are permanently saturated with water.
Explore the phenomenon of land subsidence: Land subsidence is the gradual sinking or settling of the Earth's surface. It can occur when large amounts of groundwater are removed, causing the ground to compact and sink because the support provided by the water is reduced.
Evaluate the options given: Enhanced soil fertility and increased surface water levels are not typically direct results of excessive groundwater withdrawal. Decreased atmospheric humidity might occur but is not a primary consequence. Land subsidence is a well-documented result of excessive groundwater withdrawal.
Conclude with the correct answer: Based on the understanding of groundwater withdrawal and its effects, land subsidence is the correct answer as it directly results from the excessive removal of groundwater.
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