Importance of Water
Poisonous substances from landfills can be washed away into rivers by
flood
rainwater
underground river water
none of these
rainwater
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Crops grow well when they areA. fertilized
B. irrigated
C. cared
D. wilted
Chlorine helps
A. to kill bacteria
B. in heating water
C. in cooling water
D. to evaporate water
The poison gets more concentrated as it moves through
A. water
B. food chain
C. fish body
D. vascular bundles in aquatic plants
The maximum percentage of water in a plant or animal is
A. 0.99
B. 0.75
C. 0.8
D. 0.5
The tanks that supply water to towns are built at
A. roofs of buildings
B. high towers
C. town level
D. high lands
Oil can be poison for
A. insect’s life
B. aquatic life
C. animal’s life
D. human life
Under the ground, water can be found in the form of
A. streams
B. ice
C. snow
D. rocks
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