Question

tractor have a large Tayo bulldozer have a Caterpillar truck and heavy buses struck have it reveals give one reason common to all this

Answer 1

All these trucks have large wheels because if they have small wheels they apply a greater pressure on the earth.When going on a Kuccha road , This can affect them in rainy season as their tyres will do deep inside the puddle formed by the rains . So all heavy trucks have large wheels so that they apply a lesser pressure on the earth.
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Answer 2

all the tractors have broad tyres and broad tyres has large area so , pressure will be less.
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