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

How can we ensure the quality of water?

Directions: Read the passage carefully and answer the question that follows.

Water covers three-fourth of the surface of the earth, approximately. Over 97 per cent of the total water supply is contained in the oceans and other saline bodies of water and is not readily usable for most purposes. Of the remaining 3%, a little over 2% is tied up in ice caps and glaciers. Thus, for their general livelihood and the support of their varied technical and agricultural activities, humans depend upon the remaining less than 1% of water found in freshwater lakes, rivers and groundwater supplies. Water is mostly used for industrial and municipal purposes. In order to ensure the quality, it is important to monitor the water supply throughout all of its aspects. Rain water is the purest form of naturally occurring water. However, water is distributed in the nature in different forms such as river water, spring water, rainwater and mineral water.

  1. By using water

  2. By wasting water

  3. By monitoring the water supply

  4. By recycling water
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Concept based

Multiple choice

What part of the earth is covered with water?

Directions: Read the passage carefully and answer the question that follows.

Water covers three-fourth of the surface of the earth, approximately. Over 97 per cent of the total water supply is contained in the oceans and other saline bodies of water and is not readily usable for most purposes. Of the remaining 3%, a little over 2% is tied up in ice caps and glaciers. Thus, for their general livelihood and the support of their varied technical and agricultural activities, humans depend upon the remaining less than 1% of water found in freshwater lakes, rivers and groundwater supplies. Water is mostly used for industrial and municipal purposes. In order to ensure the quality, it is important to monitor the water supply throughout all of its aspects. Rain water is the purest form of naturally occurring water. However, water is distributed in the nature in different forms such as river water, spring water, rainwater and mineral water.

  1. 75% of the earth

  2. 50% of the earth

  3. 60% of the earth

  4. 20% of the earth
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Concept based

Multiple choice

Which of the following could replace 'running' as used in the passage?

Directions: Read the following passage carefully and select the most suitable option according to the corresponding number in the passage.

The Hydrosphere is an imaginary (1) sphere. However, its importance is not imaginary. The hydrosphere contains all the water that is above, below, or upon the surface of the earth. It also includes (2) the water inside plants and animals. The larger part of the earth's hydrosphere is salt water. The water cycle pureifys (3) the atmosphere and surface water by removing (4) pollutants. It (5) supplies usable water to living things on land. It does so by purifying the saltwater of the oceans and by turning (6) it into fresh water. All life thus depends upon an "active hydrosphere." That means an intact or undamaged hydrosphere with a running (7) water cycle. Since all living things use water inside their bodies, an active hydrosphere and life travel hand in hand (8).

  1. racing

  2. functional

  3. successful

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

In the context, running means in a working condition. Therefore, the correct option here matching the requirement is 'functional'.

Multiple choice

Which of the following could replace 'hand in hand' as used in the passage?

Directions: Read the following passage carefully and select the most suitable option according to the corresponding number in the passage.

The Hydrosphere is an imaginary (1) sphere. However, its importance is not imaginary. The hydrosphere contains all the water that is above, below, or upon the surface of the earth. It also includes (2) the water inside plants and animals. The larger part of the earth's hydrosphere is salt water. The water cycle pureifys (3) the atmosphere and surface water by removing (4) pollutants. It (5) supplies usable water to living things on land. It does so by purifying the saltwater of the oceans and by turning (6) it into fresh water. All life thus depends upon an "active hydrosphere." That means an intact or undamaged hydrosphere with a running (7) water cycle. Since all living things use water inside their bodies, an active hydrosphere and life travel hand in hand (8).

  1. stay with

  2. together

  3. as friends

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

'Hand in hand' here means working togethoe or co-existing. Therefore, 'together' is the correct answer.

Multiple choice

Read the given statements and select the correct option. (1) The level of groundwater below the surface of earth at a given place is known as the water table. (2) Extensive use of groundwater in cities for domestic and industrial purposes is resulting in the lowering of the water table.

  1. Both statements 1 and 2 are true and statement 2 is the correct explanation of statement 1.

  2. Both statements 1 and 2 are true but statement 2 is not the correct explanation of statement 1.

  3. Statement 1 is true and statement 2 is false.

  4. Both statements 1 and 2 are false.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Correct option is (2).

Multiple choice

An outlet irrigates an area of 20 ha. The discharge (I/s) required at this outlet to meet the evapotranspiration requirement of 20 mm occurring uniformly in 20 days neglecting other field losses is

  1. 2.52

  2. 2.31

  3. 2.01

  4. 1.52
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Total volume of water required = Area * depth = 20 ha * 20 mm = 200,000 m^2 * 0.02 m = 4,000 m^3. Discharge = Volume / Time = 4,000 m^3 / (20 * 24 * 3600 s) = 4,000 / 1,728,000 = 0.002314 m^3/s = 2.31 L/s.

Multiple choice

A sprinkler irrigation system is suitable when

  1. the land gradient is steep and the soil is easily erodible

  2. the soil is having low permeability

  3. the water table is low

  4. the crops to be grown have deep roots
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

 Sprinkler irrigation has the highest efficient method of irrigation for the land having high gradient and soil is likely to be eroded due to flow of water but not suitable at high wind speed.

Multiple choice

What do you mean by irrigation?

  1. An artificial supply of water and fertilizer.

  2. An artificial supply of water to fields.

  3. A natural supply of water through rain.

  4. A collection of excess water from fields.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Irrigation means an artificial supply of water to plants.

Multiple choice

The amount of water in the Great Lakes is enough to...

  1. Submerge the continental U.S. in 3 feet of water

  2. Make a 1 footx1 foot column of water all the way to the moon

  3. Cover Africa in 7 inches of water

  4. Create a glacier the same size of Antartica
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The Great Lakes contain a massive volume of fresh water. It is estimated that if this water were spread evenly across the continental United States, it would cover the entire landmass in approximately 3 feet of water.