Fill up the blanks in the following: The process of changing of water into its vapour is called_______.

Fill up the blanks in the following: The process of changing water vapour into water is called _______.

The process of extracting the metal from its ore is called :

Fill up the blanks in the following: Exccssive rains may cause __________.

Which of the following statements are "true"? The process of water changing into its vapour, is called evaporation.

Fill in the blanks in the following sentences Changes in which new substances are formed are called ______changes.

Fill in the blanks in the following sentences The chemical name of baking soda is_____ .

Fill up the blanks in the following: No rainfall for a year or more may lead to ____________ in that region.