The ratio of the ages of A, B and C, 5 years ago, was 4

Which one of the following element responsible for pollen development?

The amount of biomass produced by a crop per unit of water used is called as ___

Find the wrong treatment:

Crop rotation comes under which method of pest control? 

Phenol reacts with zinc dust gives:

Mawsynram, the place with the highest rainfall in India is located in:

Bradyrhizobjum japonicum is recommended for seed inoculation of

Cadang-Cadang disease of coconut is caused by

Which of the following soil types has the highest water-holding capacity but is prone to poor aeration and slow permeability?

Which cytoplasm is most commercially used in hybrid seed production of onion?