Which of the following is not a function of environment ?

It upgrades living standard

The correct answer is option (4) : It upgrades living standard

Functions of the Environment : The environment performs four vital functions  (i) it supplies resources : resources here include both renewable and non-renewable resources. Renewable resources are those which can be used without the possibility of the resource becoming depleted or exhausted. That is, a continuous supply of the resource remains available. Examples of renewable resources are the trees in the forests and the fishes in the ocean. Non-renewable resources, on the other hand, are those which get exhausted with extraction and use, for example, fossil fuel (ii) it assimilates waste (iii) it sustains life by providing genetic and bio diversity  and (iv) it also provides aesthetic services like scenery etc.