Control of Soil Pollution

Q. Why are leguminous plants often used in crop rotation

1. Leguminous plants fix nitrogen
2. None of the above
3. Leguminous plants take up less nutrients
4. Leguminous plants keep away the pests

Q.

What Are Some Examples of Sustainability?

Q.

Why do we include a leguminous crop during crop rotation?

Q. Assertion :Leguminous plants are best preferred for rotation of crops. Reason: They have root nodules which possess nitrogen fixing bacterium Clostridium.

1. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
2. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
3. Assertion is correct but Reason is incorrect
4. Both Assertion and Reason are incorrect

Q. Alternate pest control methods and techniques are employed to reduce

1. Air pollution
2. Soil pollution
3. Water pollution
4. All of the above

Q. The main objectives of sustainable farming are

1. To make the best use of the available non-renewable resources
2. To minimize use of chemical fertilizer
3. Protect the health and safety of farm workers, local communities and society
4. All of the above

Q. Why are leguminous plants often used in crop rotation

1. Leguminous plants take up less nutrients
2. Leguminous plants keep away the pests
3. Leguminous plants fix nitrogen
4. None of the above

Q. Alternate pest control methods and techniques are employed to reduce

1. Air pollution
2. Soil pollution
3. Water pollution
4. All of the above

Q. The main objectives of sustainable farming are

1. To make the best use of the available non-renewable resources
2. To minimise use of chemical fertilisers
3. Protect the health and safety of farm workers, local communities and society
4. To prevent killing insects and animals