22. Which of the following statement is correct

(a)  Plant absorb excess quantity of water

(b)  Plants take in small quantity of mineral salts through soil water

(c)   Water and inorganic salt are taken in simultaneously by root hairs

(d)  Plant absorb only one thing at a time water or inorganic salts

Ans.  (b)      A variety of mineral elements is present in the soil but all of them are not essential for plant growth. Plants take in small quantity of mineral salts through soil water for their growth.