In one year one hectare of forest shall
A. Consume 10 tonnes of CO2 and evolve 10 tonnes of O2
B. Consume 20 tonnes of CO2 and evolve 10 tonnes of O2
C. Consume 30 tonnes of CO2 and evolve 30 tonnes of O2
D. Consume 30 tonnes of CO2 and evolve 10 tonnes of O2
Answer:D
In one year one hectare of forest shall
A. Consume 10 tonnes of CO2 and evolve 10 tonnes of O2 B. Consume 20 tonnes of CO2 and evolve 10 tonnes of O2 C. Consume 30 tonnes of CO2 and evolve 30 tonnes of O2 D. Consume 30 tonnes of CO2 and evolve 10 tonnes of O2