Your mother put the brinjal pleces after chopping in a water, because

When your mother cuts the brinjals, it turns into brownish. To avoid this we should

Give reasons : Why does your mother put folded cloth strips soaked in cold water on your forehead when you have high fever ?

A fully inflated balloon shrink when put into cold water, because

When we put a drop of, red ink in 100 ml. of water, we observe that all the water becomes purple in colour after some time. Why ?

The drift velocity of electrons in a conducting wire is of the order of 1mm//s , yet the bulb glows very quickly after the switch is put on because

At primary level, it is better to teach in mother language because:

Pointing towards A, B said "your mother is the younger sister of my mother". How is A related to B ?