NEET BIOLOGY

Detailed explanation-1: -Nitrogen returns to the soil when organisms release waste or die and are decomposed by bacteria and fungi. Nitrogen is released back to the atmosphere by bacteria get their energy by breaking down nitrate and nitrite into nitrogen gas (also called denitrification).

Detailed explanation-2: -The biosphere is the region of the Earth where life can be found, including the soil, water, and air. The lithosphere, hydrosphere, and atmosphere are the names for these three components. The lithosphere is the landmass of the Earth, except for the mantle and core, which are inhospitable to life.

Detailed explanation-3: -The biosphere is made up of the parts of Earth where life exists-all ecosystems. The biosphere extends from the deepest root systems of trees, to the dark environments of ocean trenches, to lush rain forests, high mountaintops, and transition zones like this one, where ocean and terrestrial ecosystems meet.