Question 1

What does the term 'drainage' describe?

Accepted Answer

Drainage describes the river system of an area. It refers to the origin and flow of rivers through various channels from higher elevations to lower elevations, ultimately draining into a larger water body.

Question 2

What is an area drained by a single river system called?

Accepted Answer

An area drained by a single river system is called a drainage basin. It includes the main river and all its tributaries that feed into it.

Question 3

Any elevated area, such as a mountain or an upland, that separates two drainage basins is known as:

Accepted Answer

Any elevated area that separates two drainage basins is known as a water divide. Examples include the Amarkantak hills or the Western Ghats.

Question 4

Which of the following river basins has the largest drainage basin in India?

Accepted Answer

The Ganga river basin has the largest drainage basin in India, covering a vast area across northern and eastern parts of the country.

Question 5

The Indian rivers are divided into how many major groups based on their origin?

Accepted Answer

Indian rivers are divided into two major groups based on their origin: Himalayan rivers and Peninsular rivers.

Drainage — MP Board Class 9 Social Science Important Questions & Revision Notes