The greenhouse effect is cause due to
A. Depletion of ozone layer
B. Increase in CO2 in the atmosphere
C. Incoming UV rays on the Earth
D. Absorption of outgoing long wave radiation
Answer: Option B
A. Depletion of ozone layer
B. Increase in CO2 in the atmosphere
C. Incoming UV rays on the Earth
D. Absorption of outgoing long wave radiation
Answer: Option B
Downy Mildew of Bajra caused by
A. C. fusiformis
B. S. graminicola (Sclerospora)
C. T. penicillica
D. All of the above
The criteria of essentiality of nutrients in plants was given by
A. D. J. Nicholas
B. Arnon and Stout
C. J. S. Kanwar
D. M. S. Swaminathan
A. Manganese
B. Boron
C. Zinc
D. Iron
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