Which ports connect special types of music instruments

Banana is propagated through:

Which layer of the atmosphere has lowest average temperature?

Central Agmark Laboratory is located at:

Salinization commonly occurs in which type of region :

Which one of the following stimulates the germination of Striga seeds?

Which one of the following soil orders has the highest area in India?

Quality protein maize is rich in

Which of the following agronomic measure is used for soil conservation?

The first stable compound formed in the photosynthesis of C3 plants is: 

Highest nitrogen fertilizer requiring crop is