How does water enter groundwater reservoirs?

Answer 1

Rain and snow melt can "soak" into the ground. Some soils and rock formations are porous allowing water to move underground.

Create a hole in the sand close to the ocean, then fill it with a bucket of water. The water will disappear quickly because it has had time to "soak" into the sand and descend into the soil.

We saw fresh water trickling down into pools on the cave floor in a lava cave in Hawaii. The tropical climate's heavy rainfall allowed water to find its way through the lava beds and into the ground beneath.

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Answer 2

Wesley Alvey

Water enters groundwater reservoirs through a process called infiltration, where precipitation or surface water percolates through the soil and rock layers. This replenishes the groundwater, filling the spaces between particles in the subsurface. Additionally, direct injection through wells or human activities, such as irrigation or sewage disposal, can contribute to the recharge of groundwater reservoirs.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.