Which one of the following is a major contributor to pollution
a).riding your bike
b).cars driving along a highway
c).recycling newspapers
d). recycling glass

The correct answer is B. Cars driving along a highway.

Explanation

Most of the cars have been developed with combustion engines, that is, the engines that use the cars require fuel for the car to run and run. the most frequenly fuel used in cars is diesel or gasoline, these are petroleum-based products, and when subjected to the combustion process, produce polluting gases that affect the health of humans, animals, and plants, They also deteriorate air quality, and damage the ozone layer. So, the correct answer is B. Cars driving along a highway.

thats not even an aswer choice

the answer is definitely a