Q. Which of the following statements is/are not correct?
1.A river drains the water collected from a specific area called its catchment area.
2.An area drained by a river and its tributaries is called a drainage basin.
3.The boundary line separating one drainage basin from the other is known as the watershed.
How many of the statements given above are correct?
Answer: D
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.
Source: NCERT

