Consider the following Statements:

1. An Ox-Bow lake is a cut-off river meander.
2. Youthful stage of a river is characterised by a flood-plain.

Which of the Statement(s) given above is/are correct?

The constitution of India mandates that State may reserve any post or appointment in favour of any backward class of citizens who are not adequately represented in the services under that State. Who decides whether such class of citizens is adequately represented or not?

Taungya farming system:

1. is used for raising forest plantation 
2. originated in Nepal
3. reduces the cost of plantation

Which of the above statements is/are correct?

Barachukki and Gaganachukki waterfalls are associated with which of the following rivers?

Consider the following pairs of crops with their varieties:

1. Pusa Sadabahar?Mustard
2. Pusa Komal?Pigeonpea
3. Pusa Swarnim?Wheat

Which of the above is/are correct?