Soil and Its Conservation

Q. Which of the following statements is correct regarding soil?

1. It provides structural support to plants.
2. It increases air pollution.
3. It supplies water and minerals for plant growth.
4. It acts as a home for various micro-organisms.

Q. Soil erosion can be prevented by:

1. afforestation
2. deforestation
3. overgrazing
4. urbanization

Q. Which of the following helps in preventing soil erosion?

1. Overgrazing
2. Deforestation
3. Afforestation
4. Excessive use of fertilizers

Q. Choose the correct option regarding the statements given below.

Statement 1: Soil is essential for agriculture.
Statement 2: Soil provides water and nutrients to the plants.

1. Statement 1 is correct and statement 2 is incorrect.
2. Statement 2 is correct and statement 1 is incorrect.
3. Both statements 1 and 2 are incorrect.
4. Both statements 1 and 2 are correct.

Q. Crop rotation is a farming method which maximizes _______ .

1. soil fertility
2. air pollution
3. deforestation
4. water usage

Q. In ______, the crops are planted in alternating strips across a slope.

1. contour strip cropping
2. percolation pits
3. drip irrigation
4. selective harvesting

Q. In _____________, a group of plants are cultivated for economic use and another group to prevent soil erosion, maintain biodiversity, etc.

1. contour strip cropping
2. contour field bunding
3. broad bed furrow
4. selective harvesting

Q. Why is soil considered one of the most important natural resources?

1. Soil is the base for agriculture.
2. Soil provides us with plastics.
3. Soil is used to make earthen pots.
4. Soil helps in killing the bacteria.

Q. The method of growing crops on graduated steps on the slopes of hills and mountains is called farming.

1. organic
2. terrace
3. indoor

Q. prevents soil erosion by slowing down the flow of water on soil.

1. Step farming
2. Deforestation
3. Percolation pit