Question

Give scientific reasons (Any 2) :
Load carrying heavy vehicles have large number of wheels.
We should drink boiled water in rainy season.
It becomes easier to swim in sea water than in fresh water ? for class 8th exam.
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Answer 1

Q.Load carrying heavy vehicles have large number of wheels.

Ans.Carrying heavy vehicles have large number of wheels because having large no. of wheels in a vehicle help to support the item or object or things which is kept on the wheel and than there us less chance of falling the item or something that is placed on vehicle.

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Q. We should drink boiled water in rainy season.

Ans.We should drink boiled water in rainy season because in rainy season microbes multiple faster and to prevent it drink boiled water in rainy season.

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