Which of the following is a cash crop?

1. Cotton
2. Rice
3. Wheat
4. Maize

In India, the Green Revolution was led by

1. Dr M. S. Swaminathan
2. Dr Norman Barlaug
3. Dr J. C. Bose
4. none of these

It is an example of exotic breeds of cows.

1. Red Sindhi
2. Shahiwal
3. Gir
4. Jersey

Aspergillosis is a disease occurring in birds caused by a

1. bacterium
2. fungus
3. virus
4. alga