Rainwater Harvesting

Q.

Name the largest freshwater lake in india.

Q.

What are the main aims and objectives of rainwater harvesting?

Q.

Find out about the traditional systems of water harvesting/ management in your region.

Q. Continuous contour trenches are built on hills to save rainwater.

1. True
2. False

Q.

Define stepwell and stone carvings.

Q. Identify the traditional means of drawing water from the given image.

1. Mot
2. Rahat
3. Pot
4. Gadge

Q. Taking steps to ensure that rainwater will be available post the rainy season is called water pollution.

1. True
2. False

Q.

Rainwater harvesting cannot be carried out in cities.

1. True

2. False

Q.

In Rajasthan, where do the people harvest the rainwater?

1. In the talab

2. In buckets

3. In bandhu

4. In balushah

Q. Which of the following animals is used to turn rahat to draw water from wells?

1. bullocks
2. horses
3. humans
4. goats

Q. Small area dug up to collect rainwater, mostly found in Rajasthan is called

1. Kund
2. Talab
3. Johad
4. Bandhi

Q.

In Madhya Pradesh, water ponds used for rainwater harvesting are called:

1. Pokhariyan

2. Johad

3. Jaleb

4. Rapat

Q. Mot is used in some regions of Maharashtra to draw water from wells.

1. False
2. True

Q.

The latest water filters use ____________(infrared rays/ultraviolet rays) for purification.

Q.

In Rajasthan, an old method in which ponds that are dug up to store rainwater are called _____.

1. Rapat

2. Talabs or Bandhis

3. Jaleb
4. pond

Q.

Which are the most popular methods of rainwater harvesting in cities?

1. Rooftop rainwater harvesting

2. Wet wall rainwater harvesting

3. Surface run-off rainwater harvesting

4. Tree house rainwater harvesting

Q.

Water harvesting is a technique to collect water from rain in underground or overhead reservoirs so that it can seep down the soil once more to form groundwater in that area rather than running off to water bodies and going to far off places. It is an age old technique adopted by local people by making the traditional Structures like ponds, tanks, etc. It is significant from the point of view of conserving soil and water which ultimately leads to growth of more trees and increase in animal population. Thus it leads to ecological balance. Due to less water running off to water bodies and recharging of groundwater, floods and draught are reduced. It also replenishes water in reservoirs. It gives employment to those involved in it and increases income of those benefited by it. It avoids the mismanagement and misuse of water resource as local people can control them and take benefit too.

(i) Prashant colony does not get enough water during month of May and June every year. Suggest two ways to deal with the problem of water shortage.

(ii) A village in Rajasthan has taken an innovative approach to collect rainwater in underground tanks. Will this water be useful to the whole nation or to this village?

(iii) Is there some other way, villagers can collect this water too? How?

Q. Which of the following is used for storage of water by water supply board?

1. Lake
2. Tank
3. Pond
4. Dam

Q. Where are bandharas predominantly found?

1. Maharashtra
2. Tamil Nadu
3. Uttar Pradesh
4. Karnataka

Q.

Identify this pond like structure, used to store rainwater in Haryana and Rajasthan.

1. Talab

2. Kund

3. Pokhariyan

4. Rapat

Q. What are the alternative sources of water for the people of Jaisalmer in older times other than Gadisar lake?

Q. Match the following places with the structures used by them for rainwater harvesting

1. Impluvium
2. Johad
3. Pokhariyan
4. Baori

Q. Which source(s) does water supply board in a city use to collect water?

1. Rivers
2. Lakes
3. Sea
4. Dams

Q. Farmers grow crops based on the availability of water.

1. True
2. False

Q. Which of the following lakes helped the people of Rajasthan to fulfill their water needs?

1. Chilika Lake
2. Periyar Lake
3. Gadisar Lake
4. Kankaria Lake

Q.

Jerry saw this water harvesting check dam in his hometown in Rajasthan. What is it called?

1. Kund

2. Pokhariyan

3. Johad

4. Rapat

Q. ________ seeps into the pores of the soil or through the cracks in the rocks.

1. Water in oasis
2. Groundwater
3. Fresh water
4. Salt water

Q. All the following features are of the shelters of the indus valley civilisation except for:

1. A well located within the house.
2. An underground drainage system.
3. A doorway through the ceiling.
4. A squared pillar prayer hall

Q. What are the advantages of rainwater harvesting?

1. Reduces water bill
2. Can be used for household purposes
3. Soil becomes fertile
4. Unpredictable rainfall

Q. Wastewater flowing out of industries, hospitals and offices is collectively called _________.

1. salt water
2. sewage
3. fresh water
4. filtered water