Question

What happens when
(a) Cooking medium is made to flow down a drain.
(b) Insecticides, motor oil, paints are poured down the drain.
(c) Tea leaves, cotton swabs and old soft toys are thrown into the drain.

Answer 1

(a) Clog pores in soil and may block pipes.
(b) Kill useful microbes which help purify water.
(c) Choke the drains.