Cars do not release harmful gases in air.

In the following pair of pictures identify the right and wrong ones keeping in view the concept of air pollution and write the reasons. 

(A)  (B)  

Choose the appropriate word and fill in the blank.

Cars and buses give out _____. (smoke, water)

Choose the right word and fill in the blank:

Coal, petrol and diesel release _____ (water vapour / smoke) on burning.

Fill in the blank using the options below:
(Smoke, CNG, Pollution, Water, Vehicles, Factories)

The _____ released from vehicles and factories pollute the air.

Fill in the blank using the correct word.

Accidents occur mostly due to our _____. (carelessness/mindfulness)

Match the following.