Either less rainfall or high rainfall are not suitable for mankind. Give reasons why.

Due to less rainfall this occurs

Why arteries are rigid? Give reasons

What happens if there is less rainfall or to much rainfall?

Why Biryani is costlier than plain rice ? Give reasons.

Preparation of ethers by acid dehydration of secondary or tertiary alcohols is not a suitable method. Give reason.

Preparation of ethers by acid dehydration of secondary or tertiary alcohols is not a suitable method. Give reason.

Why kerosene in sprinkled in drainage water ? Give reasons.

Why mother sieves flour before cooking roti ? Give reasons.

Why doctors use distilled water for injections ? Give reasons.

Why are some plants called insectivorous plants. Give reasons.