CHAPTER 2
HOW TO MAINTAIN QUALITY OF WATER?
EXERCISE
QUESTION FOR WRITTEN WORK
Answer the following question in brief:
(1)What are the sources of water?
Ans
i) River,
ii) Sea,
iii) Ocean,
iv) Ground water,
v) Rain,
vi) ponds,
vii) Lake,
viii) Stream,
ix) Ice capes,
x) glaciers,
xi) ice water,
xii) springs.
(2)How to maintain the quality of water?
Ans.
Following are the some things to maintain the quality photo:
i) Create a proper balance of plants.
ii) Have good water filtration system.
iii) Manage this stock of water more efficiently.
iv) Maintain proper pH as well as oxygen.
(3)How a stock of water in the home can be kept pure?
Ans.
i)The pure water supplied to the houses must be stored in
a proper way to maintain its purity.
ii) Household storage, utensils of water should be cleaned
daily.
(4)How to purify groundwater?
Ans.
Following are methods to purify groundwater :
i) Boiling
ii) filtration,
iii) distillation
iv) chlorination
(5)Write three slogans for the topic: the drinking water for health:
Ans.
i) Pure water runs life.
Yeah it is equal to a better life.
ii) 4 minute shower not a quarter hour!
iii) Water is equal to the beauty of nature.