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.

lunar landing mission. apollo 11 was the first manned mission to land on the moon. the first steps by humans on another planetary body were taken by neil armstrong and buzz aldrin on july 20, 1969. the astronauts also returned to earth the first samples from another planetary body.

explanation:

the unequal cytoplasmic division that  results  in  one egg  and three polar bodies ensures that a fertilized  egg has  ample nutrients  forits journey  to  the uterus.