Question

Read the following passage and answer the following questions.

Most of the rocks under the soil in Andhra Pradesh consist of granites which are

hard and impervious. However, the top portion of these rocks (about 20 meters) are broken

(weathered) and they carry water. Many of these rocks also have deep cracks going down to

50 or 100 meters depth. These cracks too contain water. Normally with ordinary wells that

we dig, we tap the water that is present in the top of weathered layer. Tube wells which are

dug with the help of drill machines reach the deep cracks and draw water from them.

i) How many meters have the top soil consist?

ii) Which rocks also have deep cracks going down to 50 to 100 meters?

iii) Which wells are dug with the help of drill machines?

iv) What kind of rocks mostly Andhra Pradesh consist of ?​

Answer 1

Answer:

1.About 20 meters

2.The top portion of these rocks are broken

(weathered) and they carry water. Many of these rocks also have deep cracks going down to

50 or 100 meters depth.

3.Tube wells

4. Granites Rocks which are hard and impervious