Prevention of floods

Q. How can floods be prevented?

1. Putting up food barriers
2. Designing better drainage systems
3. Afforestation
4. Deforestation

Q. How does afforestation help in preventing floods?

1. It increases soil erosion.
2. It reduces sudden flooding.
3. It reduces soil erosion.
4. It does not help in preventing floods.

Q. How does afforestation help in reducing the damage caused by floods?

1. It decreases the amount of rainfall.
   
2. It reduces sudden flooding.
   
3. It helps in rainwater harvesting.
4. It helps in reducing soil erosion.

Q. Which of the following measures must be taken during floods?

1. Drink only boiled water.
2. Normal water can be consumed.
3. Use bleaching powder and lime to disinfect the surroundings.
4. Venture into knee deep waters.

Q. How does afforestation help in reducing the damage caused by floods?

1. It decreases the amount of rainfall.
   
2. It reduces sudden flooding.
   
3. It helps in rainwater harvesting.
4. It helps in reducing soil erosion.

Q. How does afforestation help in preventing floods?

1. It increases soil erosion.
2. It reduces sudden flooding.
3. It reduces soil erosion.
4. It does not help in preventing floods.

Q. Which of the following measures must be taken during floods?

1. Drink only boiled water.
2. Normal water can be consumed.
3. Use bleaching powder and lime to disinfect the surroundings.
4. Venture into knee deep waters.