Geography
Answer
It is essential to have proper disposal of wastes because careless disposal can lead to following problems:
- can cause spread of diseases
- can aggravate problem of insects, flies and rodents
- toxic substances in waste can cause cancer and genetic disorder
- colour pigment of plastics contain heavy metals.
- Some chemicals present in waste like cyanides, polyclorinated phenyls and mercury are very toxic and can lead to death.