Question

Why do we use chimneys in factories

Answer 1

hey mate ! here is your answer->

we use chimneys in the factory because the dust or the pollution can go out of the factory and the pollution directly enters into the atmosphere without disturbing the land area
hope it helps you

Answer 2

chimneys are used in factories so that the toxic gases and smoke produced in factories get diffused in the upper air because if these gases get diffused in the lower air it may harm the people living near by.