Q. Consider the following statements:
1. The boundary line separating one drainage basin from the other is known as the catchment area.
2. An area drained by a river and its tributaries is called a drainage basin.
3. The river drains the water collected from a specific area which is called its watershed.
How many of the statements given above is/are correct?
Answer: A
Notes:
Explanation:
- A river drains the water collected from a specific area, which is called its ‘catchment area’.
- An area drained by a river and its tributaries is called a drainage basin.
- The boundary line separating one drainage basin from the other is known as the watershed.
- The catchments of large rivers are called river basins while those of small rivulets and rills are often referred to as watersheds.
- There is, however, a slight difference between a river basin and a watershed.
- The watersheds are small in area while the basins cover larger areas.
Source: Class 11th NCERT
