Soil Pollution

Q.

Explain how soil pollution and soil erosion could be prevented.

Q. Why are plastic bags considered bad for soil?

1. They change the colour of the soil.
2. They pollute the soil.
3. They make soil particles too thick.
4. They make soil particles too rough.

Q. Soil conservation include:

1. Prevention of spread of desert
2. Allowing top soil to wash away
3. Prevention of overgrazing
4. Keep soil erosion in check by afforestation

Q. Suggest two measures to conserve soil.

Q. An area of soil thoroughly wetted and allowed to drain till percolation stops will have a water content called

1. Capillary water
2. Storage water
3. Field capacity
4. Gravitational water

Q. Which of the following is/are problems of a landfill?

1. Pollutes surrounding land
2. Pollutes surrounding water bodies
3. Pollutes surrounding air
4. Cleans the surrounding water bodies

Q. Soil conservation is

1. Aeration of soil
2. Erosion of soil
3. Protection of soil against loss
4. Conversion of sterile soil into fertile soil