…………… is a way of disposing waste on land without causing health hazards or public safety.

1. Dumping
2. Sanitary landfill
3. Recycling
4. Incineration

Assertion (A): Open Dumping is not environment friendly.

Reason (R): The burning of waste material in the open dumps pollutes the air.

1. Both A and R are true and R is the correct explanation of A.
2. Both A and R are true but R does not explain A.
3. A is true but R is false.
4. A is false but R is true.

Compositing rejuvenates poor soils by adding …………… .

1. nutrients
2. manure
3. humus
4. oxygen

Assertion (A): Incineration is a useful technology to deal with large quantities of organic hazardous wastes.

Reason (R): Vacant areas for disposal sites are not very many.

1. Both A and R are true and R is the correct explanation of A.
2. Both A and R are true but R does not explain A.
3. A is true but R is false.
4. A is false but R is true.