What is the value of Avogadro's number?

The factor for conversion of ppm to kg/ha is:

Which principle promotes the participation of all family members in extension activities?

The Ranikhet disease affects: 

Which of the following is not a film forming type anti-transpirant?

Among the following insect orders, which is exclusively herbivorous in nature?

Irrigation water quality is evaluated based upon

Sand drown disease in tobacco is caused by deficiency of

To which one of the following common bread wheat (2n = 42) belong:

Indicate the percentage of nitrogen in D. A. P: