LIFE SCIENCE

Detailed explanation-1: -The biosphere is made up of the parts of Earth where life exists. The biosphere extends from the deepest root systems of trees, to the dark environment of ocean trenches, to lush rainforests and high mountaintops. Scientists describe Earth in terms of spheres. The solid surface layer of Earth is the lithosphere.

Detailed explanation-2: -The biosphere is the region of the earth that encompasses all living organisms: plants, animals and bacteria. It is a feature that distinguishes the earth from the other planets in the solar system. “Bio” means life, and the term biosphere was first coined by a Russian scientist (Vladimir Vernadsky) in the 1920s.

Detailed explanation-3: -The three basic media that support life are air (atmosphere), water (hydrosphere), and soil (pedosphere). Soil is the product of physical weathering of Earth’s crust and activities of organisms, especially vegetation and microorganisms.