Importance of Water
Oil on the feathers prevents
birds from keeping themselves warm
bugs from entering the bird’s feathers
cold air from entering the body
dust to enter feathers
birds from keeping themselves warm
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Crops grow well when they areA. fertilized
B. irrigated
C. cared
D. wilted
Poisonous substances from landfills can be washed away into rivers by
A. flood
B. rainwater
C. underground river water
D. none of these
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
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