Solution

The environment performs four vital functions:
1.Environment Supplies Resources. Resources include both renewable and non-renewable resources. 2.Renewable resources are those which can be used without the possibility of the resource becoming depleted or exhausted.
3.In other words, a continuous supply of the resource remains available. Examples of renewable resources are trees in the forest and fish in the ocean. 4.Non-renewable resources are those which get exhausted with extraction and use. Example, fossil fuels. Environment Sustains Life. Environment includes sun, soil, water and air which are essential ingredients for the sustenance of human life. 5.The carrying capacity of the environment implies that the resource extraction is not above the rate of regeneration of the resources and the waste generated are within the assimilating capacity of the environment.
6.Carrying capacity of the environment helps to sustain life. Absence of carrying capacity of environments means absence of life. 
7.Environment Assimilates Waste.
8.Production and consumption activities generate waste. This occur mostly in the form of garbage.
9.Environment absorbs garbage. 
10.Environment Enhances Quality of Life 11. Environment includes oceans, mountains, deserts, etc. Man enjoys these surroundings, adding to the quality of life.