Question : If 20 % or more area of the country suffers from rain deficits during monsoon season, it is termed as

Option 1: flood year

Option 2: drought year

Option 3: famine year

Option 4: self sufficient year

Question : In ecology, _________ is determined by dividing the biomass per unit area by the age of the forest ecosystem.

Option 1: biomass density

Option 2: biomass size

Option 3: biomass energy flow

Option 4: biomass productivity