question_answer

         

(i)   Fill in the blanks in the following sentences :

(a) The process of changing water into its vapour is called ????. .

(b) The process of changing water vapour into water is called ????. .

(c) No rainfall for a year or more may lead to .......... in that region.

(d) Excessive rains may cause..............

(ii) Name the two sources of natural water.

Answer:

(i) (a) evaporation

(b) condensation

(c) drought

(d) floods 1

(ii) Rivers and lakes