Environment is the sole factor for existence of life on earth. Without it, there can be no life on earth. In our solar system there are other big planets but, have no life due to lack of environment.

Hence, even scientists are working on only Mars to create life on it as it has some suitable environment.  This shows the importance of environment for life & existence.

So below we will see the importance of environment for various roles in life.

For healthy living: To have a healthy life one needs fresh air (free of pollution), clean water supply and tidy surroundings. If air and water are polluted and surroundings are filthy then we are prone to fatal health disorders. So we need to safe guard environment in terms of pollution and disposal of garbage.

Better breath: All living things breathe air for survival. The air mostly composes of nitrogen, oxygen, carbon-dioxide and other gases. Of them oxygen is the key for the body as it helps in generation of energy from the food consumed with the help of mitochondria. So fresh air is an important component in the importance of environment which has to be kept pollution free.

Better water: Water comprises nearly 80% of total body mass. It is the medium for all the reaction and physiological processes in the body. If the very water is contaminated by filth or toxins or even disease causing microbes like bacteria, then that water is a great risk to drink.

Better rainfall: Rainfall is one of the steps of water cycle on the earth. Without rainfall there will be no water on the earth (other than sea water which is unfit to drink). This rainfall depends on tress and green vegetation around to shower as the clouds need to be cooled to form droplets. The presence of plants, trees and greenery is essential in the environment for rainfall, fresh air and water.

Better soil: Soil is the other components of environment. Soil is useful for growth of plants which are again a source of food to the animals around. This soil top layer are good for plant growth