Fill in the blanks and give reasons. a) Cleaning of water is a proces

1.	Fill in the blanks and give reasons. a) Cleaning of water is a process of removing ………… b) Waste water released by houses is called c) Dried ………… is used as manure. d) Drains get blocked by ………… and ………… …………
Answer» a) Impurities – This is to remove the wastage to get purified water. b) Sewage This is a liquid waste which causes harmful bacteria and other microbes. c) Sludge – The soft wet earth or subtances which are used as manure. d) Oil and fat The impurities stagnated in water which releases some oil and fats like fossil fuels.

Fill in the blanks and give reasons. a) Cleaning of water is a process of removing ………… b) Waste water released by houses is called c) Dried ………… is used as manure. d) Drains get blocked by ………… and ………… …………

Answer»

a) Impurities – This is to remove the wastage to get purified water.

b) Sewage This is a liquid waste which causes harmful bacteria and other microbes.

c) Sludge – The soft wet earth or subtances which are used as manure.

d) Oil and fat The impurities stagnated in water which releases some oil and fats like fossil fuels.