Saving Rivers

Q. Which of the following statement is not true about trees?

1. Trees are homes to animals and humans as well.
2. Trees helps in increasing the groundwater level.
3. Trees decrease the chances of flooding.
4. Trees helps in increase of the green house gases.

Q. How do forests help replenish groundwater levels in a particular area?

1. The bark of the trees absorb water droplets.
2. The leaves of the trees help bring water through the process of transpiration.
3. Trees help make natural ponds in every area they are a part of.
4. Water percolates deep into the ground as the trees make the soil loose, which further helps increase groundwater levels.

Q. Depletion of water resources is due to _______.

1. loss of forest cover
   
2. excessive sand quarrying
   
3. tribals in the forest
4. encroachments

Q. The loss of forest cover does not lead to which of the following?

1. Increased groundwater levels
2. Global warming
3. Scarce or scanty rainfall
4. Soil erosion and landslides

Q. Planting more trees can save rivers.

1. True
2. False

Q. Which of the following are factors that the government may consider prior to going ahead with a hydroelectric power project?

1. The height of a waterfall in question
2. Biodiversity and local residents
3. Length of the river
4. Amount of water flowing per unit time

Q. Encroachments along the riverside can include:

1. Growing crops
2. Dumping garbage
3. Planting trees along the river
4. Cleaning the riverside

Q. Pick the odd one out in the context of what the larger issue at hand is.

1. The government has planned to cut 3, 000 trees to make new roadways.
   
2. The panchayat plans to provide free cycles to school students.
   
3. Builders excessively quarry sand to contribute to the building of hospitals and industries.
4. The building of apartment complexes on lake beds.
   

Q. What can excessive sand quarring lead to?

1. Change in a river's course
2. Decrease in number of trees nearby
3. Decrease in silt quality
4. Harm to aquatic life