Question

A. Fill in the Blanks.1. ...............damages the crops.2. Any form of water falling on earth's surface is called................3. Water contains..............and....................impurities4. The amount of water vapour present in the air is called.................5. Adding chlorine to water for cleaning is called...................​

Answer 1

1. Weed damages the crops.

A weed utilizes all the nutrition provided to the crops for its growth and in turn affects or damages the crops.  

2. Any form falling water on earth's surface is known as Precipitation.

The water moves down to earth’s surface from its atmosphere in form of rain, snow, or hail and this process is called as precipitation.

3. Water contains Chemical and Natural impurities.

Impurities in water is either chemical which includes mercury, arsenic, magnesium etc or natural which includes “human and animal excreta”.

4. ‘Amount of water vapor’ in air is known as absolute humidity.

5. Adding chlorine to water for cleaning is known as chlorination.

Answer 2

1.

2.

3.soluble and insoluble

4 Humidity