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Question

Find out the wrong statements and write them in their correct form. ​​

(a) We can survive for some time without air but we cannot survive even for a few minutes without food.​
(b) A brick kiln emits a lot of smoke and other harmful gases causing air pollution.
(c) Carbon monoxide is produced by the complete burning of fuels such as coal, petrol, diesel.
(d) Chlorination is a commonly used chemical method for killing germs in the water.
(e) Water that is suitable for drinking is called soft water

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Solution

(a) Wrong statement​
We can survive for some time without food, but we cannot survive even for a few minutes without air.​

(b) TRUE​
A brick kiln emits a lot of smoke and other harmful gases causing air pollution.​

(c) Wrong ​
Carbon monoxide is produced by incomplete burning of fuels such as coal, petrol, diesel is the right statement.​

(d) True​

Chlorination is a commonly used chemical method for killing germs in water.
(e) Wrong statement​

The correct statement is - Water which is suitable for drinking is called potable water.​


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