Examlex
Which of the following statements is true?
Subsidence
Occurs when a portion of Earth’s surface gradually settles downward.
Saltwater Intrusion
The movement of saline water into freshwater aquifers, which can lead to contamination of drinking water sources and other consequences.
Dams
Structures built across rivers or streams to control water flow, used for water storage, flood prevention, and electricity generation.
Irrigated Land
Agricultural land that is supplied with water through artificial means to promote crop growth.
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