Consider the following statements with respect to Northern Plains:
1. The largest part of the northern plain is formed of new alluvium called khadar.
2. The Khadar is not suitable for intensive agriculture.
3. The river streams disappear in the Bhangar belt and re-emerge in the terai region.
Which of the statements given above is/are not correct?
1
2 only
2
1 and 2 only
3
2 and 3 only
4
More than one of the above
5
None of the above