It is because waste has to be disposed in such a manner that it doesn’t cause any type of pollution. For example: When wastes are dumped into water bodies they pollute it and also affect the marine life. If it is buried in soil, it will cause depletion of the fertility of the soil and makes the land a waste land. Hence proper disposal of waste is important because:

a) Garbage can be a source of diseases.

b) It can be processed to recycle useful components. So, garbage should also be disposed at proper places.

c) Some garbage contains plastic which can harm our environment. So they should be disposed after taking proper care.