What facts do you know about groundwater?
Groundwater is water that is found underground in the cracks and spaces in soil, sand, and rock. It is a vital source of fresh water for many communities around the world, and it is often used for drinking, irrigation, and industrial purposes. Groundwater can be found in aquifers, which are layers of rock and soil that are permeable and can hold water. Some common types of aquifers include sand and gravel aquifers, fractured rock aquifers, and confined aquifers. The amount of water in an aquifer is called the “aquifer’s saturated thickness.” Groundwater is replenished through a process called recharge, which occurs when water from precipitation, surface water, or irrigation infiltrates into the ground and replenishes the water table. The rate at which recharge occurs can be affected by factors such as climate, land use, and human activity. Overuse and contamination of groundwater can lead to a decline in water quality and availability.
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