Physical environment
There are three main physical components i.e., atmosphere,hydrosphere, lithosphere.
The atmosphere is an envelope of life having gases like oxygen and carbon dioxide that covers the planet earth.Oxygen is used by animals man for oxidation of food to get energy to perform different activities of life.Carbondioxide is used by plants to manufacture their food.
The hydrosphere includes water on the surface of earth in the form of oceans,lakes,rivers and other water bodies.Water is essential for metabolism in all living organisms and thus it is called 'cradle of life'.
The lithosphere literally means raw materials on the earth's surface.It provides minerals and soil for growth of the plants,animals and microorganisms.
The atmosphere is an envelope of life having gases like oxygen and carbon dioxide that covers the planet earth.Oxygen is used by animals man for oxidation of food to get energy to perform different activities of life.Carbondioxide is used by plants to manufacture their food.
The hydrosphere includes water on the surface of earth in the form of oceans,lakes,rivers and other water bodies.Water is essential for metabolism in all living organisms and thus it is called 'cradle of life'.
The lithosphere literally means raw materials on the earth's surface.It provides minerals and soil for growth of the plants,animals and microorganisms.
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