The biotic component means the living organism which are present in the environment.

Antarctica.

The two things which are essential for all forms of life on the earth

(i) The three resources—the land, the water and the air available on the earth.

(ii) The energy which is provided by the sun.

The life-supporting zone of the earth where the atmosphere, the hydrosphere and the lithosphere interact and make life possible is known as the biosphere.

Physical components consists of geographical conditions such as the temperature, rainfall, soil, seasons and the climate.