Q. 1. What happens when? 1. cooking medium is made to flow down a drain 2. insecticides, motor oil, paints are poured down the drain Tea leaves, cotton swabs and old soft toys are thrown into the drain.

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Solution:
1. When cooking medium is made to flow down a drain, it may choke the pipes causing drainage And if the cooking medium reaches to the soil, it will clog the pores of the soil which decrease soil fertility and pollute soil.

When insecticides, motor oil and paints are poured down the drain, they may choke the pipes causing drainage problem. And if the discharge reaches the water bodies, it pollutes the water and may cause various harmful diseases in aquatic animals.
Tea leaves, cotton swabs and old soft toys are thrown into drains it may choke the pipes causing drainage problem. Hence water does not flow down the drains and starts leaking in public places polluting the environment.