How are smoking zones useful in prevention of air pollution?

Explain the term organic farming. How does organic farming help in saving the soil quality?

Refer to the image & identify the type of preventive measure taken to reduce pollution.

1. Public Transport
2. Jeep pooling
3. Car pooling
4. None of the above

Which of the following preventive measures is depicted by the symbol?

1. No parking zone
2. No smoking zone
3. No plastic zone
4. No horn zone