What is biotic component?
The biotic component means the living organism which are present in the environment.
What are the two things which are essential for all forms of life on the earth?
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.
What are the physical components?
Physical components consists of geographical conditions such as the temperature, rainfall, soil, seasons and the climate.
Where is a hole in the ozone layer detected?
Antarctica.