Environmental Studies · Geography

Water Conservation and Management

2,823 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

What is/are the basic idea(s) behind rainwater harvesting?

(a) Catch the water where it falls. (b) Harvest the crops during rain. (c) Recharge underground water with water.

  1. Only (a)

  2. Only (b)

  3. Only (c)

  4. Both (b) and (c)
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The basic idea behind rainwater harvesting is "catch the water where it falls" e.g collecting it from the roof tops and low lying areas and the using it for variuos purposes or to recharge the water table.

Multiple choice

Why do we do rainwater harvesting?

(a) To increase the availability of water and to collect or store it for later use (b) To keep the roof tops cool (c) To use the water collected for drinking and other purposes like irrigation

  1. Only (a) and (b)

  2. Only (b) and (c)

  3. Only (a) and (c)

  4. All of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Rainwater harvesting is done to ensure the availability of water and to collect or store it for later use. This water can be later used for drinking( after purification) and other purposes like irrigation.

Multiple choice

While watering the plants in the garden, Rohan saw earthworms coming out of the soil, where a puddle had formed in the soil. Choose the reason for earthworms coming out of the soil, from the options given below.

  1. Because the earthworm did not like water.

  2. Because the earthworm wanted to bathe in the water.

  3. Because the earthworm wanted to get dry in the air after getting wet.

  4. Because the earthworm could not breathe.

  5. Because the earthworm could not swim.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Correct. When the water is poured on the lump of soil, it displaces the air which is seen in the form of bubbles. The organisms that live inside the soil and the plant roots respire in this air. The earthworm came out because the water had displaced the air present in the soil and it could not breathe.

Multiple choice

Due to lack of rains the wells, lakes, ponds get dried up and thereby creating water scarcity and as result droughts are possible.

What happens to the soil in such near drought conditions?

  1. The soil becomes more dry and patchy.

  2. The soil evaporates.

  3. The soil develops great cracks.

  4. The soil gets eroded with wind.

  5. The soil remains unaffected.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Correct. If there are no rains, then the soil becomes more dry and patchy.

Multiple choice

Directions: Answer the question that follows after considering the statement given below:

Our Earth is covered by two-thirds of water but most of the water is not potable.

Why is there scarcity of potable water?

  1. Most of the water is in the oceans.

  2. Most of the water contains aquatic life.

  3. Most of the water contains salt.

  4. Most of the water is frozen in glaciers.

  5. Most of the water is polluted.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The high salt content in water makes it unusable and unfit for human consumption.

Multiple choice

Which of the following statements is/are false?

a. The pH of river water is measured by using universal indicator paper. b. The main purpose of water harvesting is to hold rainwater on the surface of the earth. c. The destruction of forests affects; not just the availability of forest products, but also the quality of soil and the source of water.

  1. Only a

  2. Only a and b

  3. Only b

  4. Only b and c

  5. Only c

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

This is the correct option as this statement is false. The main purpose of water harvesting is to make rainwater percolate under the ground so as to recharge the groundwater.

 
 

Multiple choice

Which of the following is not an advantage of water stored in the ground?

  1. The water stored in the ground does not evaporate.

  2. The water stored in the ground gets loaded with minerals automatically.

  3. The water stored in the ground spreads out to recharge wells.

  4. The water stored in the ground does not promote the breeding of mosquitoes.

  5. The water stored in the ground is protected from contamination by human and animal wastes.

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

 
 

Multiple choice

___________ is a modern method of irrigation.

  1. Moat

  2. Sprinkler system

  3. Dhekli

  4. Rahat
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Sprinkler system is a modern method. In this method, water is supplied through a nozzle in the form of sprinkle. It saves the excess use of water.