CFCs

Q. Principal cause of ozone depletion is the :

1. green-house effect
2. acid rain
3. presence of fluorocarbons
4. photochemical smog

Q. Suggest the best and practical way among the following to the fight air pollution in the metro cities.

1. Relocate the polluting industries outside the city limit.
2. Using public transports and bicycles to reduce vehicular emission
3. Regulating when vehicles should get in and out of the city
4. Ban the usage of plastics