(i) In the month of April and May the water level in the river is at _____.
(ii) In summers the water level of the river _____.
(iii) We get drinking water from _____.
(iv) When there is a change in color of the water with a bad smell then it is _______ water.
(v) Water appears to be _____. However, pure water has a slight _____ color.
(vi) Overflowing rivers causes _____.
(i) Seawater is drinkable.
(ii) Same amount of water is there in the rivers during the rainy season or in summer.
(iii) We should not wash our clothes in the river.
(iv) Water changes colour after it passes a city because some water is removed for use by people living in the city.
(v) One of the best ways to clean water is by boiling it.
(i) By which method we can clean drinking water?
(ii) Mention a few things which dissolve easily in water?
(iii) What happens when a flood occurs?
(iv) Name different kinds of animals present in the river?
(v) What kind of plant grows in rivers?
(vi) From the given figure, how many fishes are there inside the river?
(vii) From the given figure, name the different animals in the picture?
(viii) When does Water become dirty?
(ix) Name a few birds that live near water?
(x) What amount of water in rivers do we have in the rainy season?
(i) If many dead fishes are found on the banks of a river, it means that the river water is ______.
(ii) If we try to dissolve haldi in water, the water changes colour to ______.
(iii) Wheat flour ______ in water.
(iv) If oil leaks from a ship on the river, it may ____ the fish in the river.
(v) Even if the water appears ______ it may not be alright to drink.
(vi) ______ source of fresh water.
(vii) The level of groundwater is ______ in cities.
(viii) ORS stands for _____.
(ix) _______ is a holy river of the Hindus.
(x) _______ is the best way to clean dirty water.
(ii) What are two man-made sources of water?
(iii) If we drink dirty water, what can happen to us?
Column A | Column B |
Sand | dissolves in water |
Boiling Water | pollutes the water |
Milk | has many fish when it is clean |
Washing Clothes | does not dissolve in water |
River Water | makes it drinkable |
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2. What are some common pollutants that can affect a river's health? |
3. How do human activities impact the health of a river? |
4. What are some ways to protect a river from pollution? |
5. How do rivers play a role in the water cycle? |
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