Mangrove forests can thrive in …………… water.

1. salt
2. fresh
3. polluted
4. salt and fresh

Which of these is a bird sanctuary?

1. Dhudhwa
2. Sultanpur
3. Dachigam
4. Guindy

Forests grow in areas of scanty rainfall.

Thick barks and long thorns help the desert plants to reduce water loss.