A. 50°c for 5 hrs

B. 53°c for 6 hrs

C. 45°c for 6 hrs

D. none of the above

A. Lake

B. Dam

C. River

D. Head works

A. 11 Barrages

B. 19 Barrages

C. 25 Barrages

D. 41 Barrages

A. 60

B. 80

C. 95

D. none of the above

A. Crop seeds

B. weed seed

C. Both a and b

D. none of these

A. Symbiosis

B. Biosystem

C. Auto environment

D. Climate

A. Trytophan

B. Phenolics and. terpenoids

C. Cytokinin and ethylene

D. none of these

A.  More carbon dioxide as compared to atmosphere

B. Less oxygen as compared 10 atmosphere

C. Both a & b

D. None of the above

A. Secondary tillage

B. Zero tillage

C. Minimum tillage

D. None of the above

A. Ammonia

B. Methane

C. Ethane

D. CO2