Environmental Studies · Geography

Water Conservation and Management

2,859 Questions

Water conservation and management questions evaluate techniques for preserving water resources, traditional harvesting methods, and modern irrigation systems. Topics include wastewater treatment, groundwater extraction, and the economic role of wetlands. These concepts are essential for environmental studies and geography exams.

Irrigation MethodsWater HarvestingWastewater ManagementHydropower PlantsWetlands ConservationUrban Water Quality

Water Conservation and Management Questions

Multiple choice

Which of the following options is/are the advantages of irrigation?

a. Irrigation is necessary to increase the aerial branches in crops. b. In irrigation, the supply of water is regular and reliable. c. With irrigation, cultivation can be done round the year and not only in the rainy season.

  1. Only (a)

  2. Only (a) and (b)

  3. Only (b)

  4. Only (b) and (c)

  5. (a), (b) and (c)
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

This is the correct option, as all of the above are advantages of irrigation. 

Multiple choice

Which of the following statements is/are correct?

a. Three-fourth of the earth’s surface is covered with water, but only a small proportion of it accounts for freshwater. b. Groundwater is the only source of freshwater. c. Water is renewable yet by 2025, nearly two billion people will live in absolute water scarcity.

  1. a only

  2. b only

  3. c only

  4. a and c

  5. a, b and c
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

This is the correct answer as both these statements are correct. Three-fourth of the earth’s surface is covered with water, but only a small proportion of it accounts for freshwater. Water is renewable yet by 2025, nearly two billion people will live in absolute water scarcity.

Multiple choice

Which of the following statements is/are correct?

a. Roof top rain water harvesting is done in the flood plains of Bengal. b. Inundation channels were used in Bengal to lead the flood waters of rivers towards the agricultural fields. c. The flood plains of Bengal use underwater storage tanks to store flood water.

  1. a only

  2. b only

  3. c only

  4. a and c

  5. b and c
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

This is the correct answer. This statement is correct. Inundation channels were used in Bengal to lead the flood waters of rivers towards the agricultural fields.

Multiple choice

Which of the following statements is/are correct?

a. In modern day Rajasthan, the practice of rooftop rainwater water harvesting has gained popularity despite high water availability due to the Rajasthan Canal. b. Bikaner, Phalodi and Barmer harvest rainwater and store it in earthen embankments called khadins built across the lower hill slopes lying below gravelly uplands. c. Nearly every household in the city of Shillong has a roof top rainwater harvesting structure.

  1. a only

  2. b only

  3. c only

  4. b and c

  5. a, b and c
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

This is the correct answer as this statement is correct. Nearly every household in the city of Shillong has a roof top rainwater harvesting structure.

Multiple choice

Which of the following statements is/are correct?

a. In the inundation canal irrigation system, floodwater enters the fields through the inundation canals, carrying rich silt. b. In the bamboo drip irrigation system, the channel sections, made of bamboo, divert water to the plant site where it is distributed into branches, again made and laid out with different forms of bamboo pipes. c. In roof top rain water harvesting system, the rain water at the roof top is collected using a PVC pipe and is filtered using sand and bricks.

  1. a only

  2. b only

  3. c only

  4. b and c

  5. a, b and c
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

This is the correct answer as all the statements are correct.

Multiple choice

Which of the following statements is/are correct?

a. Bamboo pipes are used to divert perennial springs on hilltops to the lower reaches by gravity in the bamboo drip irrigation system. b. This is a newly popular system of tapping stream and spring water. c. About 18-20 litres of water enters the bamboo pipe system, gets transported over hundreds of metres and finally reduces to 20-80 drops per minute at the site of the plant.

  1. a only

  2. b only

  3. c only

  4. a and b

  5. a, b and c
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

This is the correct answer as these statements are correct.

Multiple choice

Which of the following is/are not the reason(s) for there being water scarcity in India?

a. Over exploitation of water resources b. Unequal access to water among different social groups c. India receiving only 4 percent of global precipitation

  1. a and b

  2. b and c

  3. a and c

  4. a, b and c

  5. Only a
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

These statements are correct. Over exploitation of water resources causes water scarcity. Unequal distribution of water occurs due to unequal access to water among different social groups, which means that there is water scarcity for people in a financially poor social group, whereas water might be plentiful in an affluent social group. Thus, this is the correct answer.

Multiple choice

In which of the following irrigation methods are perpendicular pipes, having rotating nozzles on top, joined to the main pipeline at regular intervals?

  1. Pulley system

  2. Lever system

  3. Sprinkler system

  4. Drip system
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Sprinkler system is more useful on an uneven land where sufficient water is not available. Perpendicular pipes, having rotating nozzles on top, are joined to the main pipeline at regular intervals. When water is allowed to flow through the main pipe under pressure with the help of a pump, it escapes from the rotating nozzles. It gets sprinkled on the crop as if it is raining. A sprinkler is very useful for sandy soil.