Question

The water bearing layer of the earth called P is made up of two components O and R, in which R water collect under the ground. The top level of layer Pis called S. When too many tubewells are used in an area, the level of S in that area goes down. What are P, Q, R and S? [HOTS]

Answer 1

Answer:

P- Aquifer

Q- Soil

R- Permeable rocks,

S -Water table

Answer 2

Here, P is an aquifer, Q is soil, R is permeable rocks, and S is the water table.

• An aquifer (P) is a water-holding body of rocks that holds water underground. It is of 2 types- confined and unconfined.
• It is made up of soil (Q) and permeable rocks (R) or sediments which are porous that let the rainwater pass through it and get collected underground above the bedrock which is non-permeable.
• The part of aquifers above the ground (its top layer) is called surface water (S) which basically consists of lakes, ponds, rivers, and any natural source of water above the ground.