Question

5. The underground water trapped between the layers of rock or clay is called​

Answer 1

Explanation:

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Such a water-carrying layer is called an aquifer. When an aquifer becomes trapped between two impermeable layers that, owing to the topography, slope down into the ground, the water it carries will flow down and will be put under pressure. The further trapped water flows down, the more pressure will be developed.

Answer 2

The underground water trapped between the layers of rock or clay is called aquifer