Which of the following gas is present at a very high concentration in our environment?
A). O2
B). CO2
C). H2
D). N2
N2
N2 is present at a very high concentration in our environment.
1. If the sun suddenly began emitting more energy, the earth's radiative equilibrium temperature would:
3. Major consumer of wood from forest is ___________
4. _________ is the most inhuman of social crimes.
5. Green Revolution in India was initiated by __________
7. _________ is an important factor that aggravates the effect of drought.
8. When the air temperature is below freezing, the saturation vapour pressure over water is .
9. Which among the following result in the formation of soil?
10. The formation of __________ is the most characteristic feature in upper course of a river