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Worksheets4th standard Lesson 18 and 19 quiz
Total questions: 15
Worksheet time: 10mins
Most of the freshwater on earth comes from _________
River
Ocean
Rain
Identify the sources of inland water
Wells, hand pumps
Tubewells
Lake,River
The place where a river begins is known as its (a)
Find out the snow fed river.
Kaveri
Krishna
Yamuna
How many oceans are there in the world?
Five
Four
Three
In which process, water vapour changes back into water on cooling.
Evaporation
Condensation
Drying clothes
______________ occurs when water becomes hot.
Condensation
Evaporation
Filtration
Oil spills pollute the water and harm (a) life
Water that is suitable for drinking is called (a)
During the purification process, water is treated with chemicals to kill _________
Minerals
Humans
Germs
Vessels containing drinking water should always be kept __________
Opened
Covered
Uncovered
Drinking (a) water can cause diseases such as cholera, dysentery and diarrhoea.
Which is called as Artificial lake?
Canal
Reservoir
Dam
A large natural flow of water across land is called a (a) .
Farmers depend on rain to (a) their field.
