If there was no $CO_2$ in the earth's atmosphere, the temperature of earth's surface would be
As such
Less than the present level
Increase from present level
Dependent upon oxygen amount of the environment
Which of the following contribute to the carbon cycle
Treeless biome of cold climates is
What is studied under the ‘‘microcosm’’
In which of the following habitats does the diurnal temperature of soil surface vary most
Plants of salty seashore wet-lands are called