Which item causes a scarring lung disease?

radon

asbestos

ozone

ammonia

The correct answer is asbestos.

Asbestos is made up of tiny fibers and when these fibers are inhaled they tear and scar lung tissue leading to a lung disease called asbestosis. This disease can be fatal as it causes severe breathing problems and eventual inability for the lungs to work properly.

      x/140 = 25/100

we need to find the x to find the x multiply 140 and 25

and what do you get 3500.   and what is 3500 divided by 100

= 35