Teaching Bihar STET Paper 1 (माध्यमिक) Mock Test 2024 Environmental Studies Terrestrial Ecosystem Forest
Why are forests called the green lungs of the Earth?
1
They release oxygen through the process of photosynthesis
2
They remove all the carbon-di-oxide from the atmosphere
3
They provide more and more oxygen to overcome the oxygen and carbon-di-oxide balance existent on the Earth
4
They fix the nitrogen of the air directly