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

Whic of the following statements is true for potable water?

  1. Water that can be used for bathing and washing and not fit for drinking.

  2. Water safe for drinking purpose.

  3. Water that can be easily accessible.

  4. Water that can be easily transportable from one place to another.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

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Multiple choice

Directions: The question below is followed by three arguments labelled A, B and C. You have to decide which of the given arguments is/are ‘strong'.

Question: Should there be a cap on drawing groundwater for irrigation purposes in India? Arguments:
(A) No, irrigation is of prime importance for food production in India and it is heavily dependent on groundwater in many parts of the country. (B) Yes, water tables have gone down to alarmingly low levels in some parts of the country where irrigation is primarily dependent on groundwater, which may lead to serious environmental consequences. (C) Yes, India just cannot afford to draw groundwater any further as the international agencies have cautioned India against it.

  1. Only (A) and (B) are strong

  2. Only (B) and (C) are strong

  3. Only (A) and (C) are strong

  4. All (A), (B) and (C) are strong

  5. None of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Statement (A) is strong as objection is based on the fact. If food production is dependent on groundwater so a cap on drawing groundwater will obstruct the food production, thus the cap on drawing grounwater should not be there. Statement (B) is also powerful. If groundwater level has gone down alarming low in some areas so further drawing groundwater will definitely lead to serious enviorenmental consquences, thus there should be definitely a cap on drawing water. Statement (C) is weak, as on the base of affordability we just can’t avoid the necessity.

Multiple choice

How much water do the humans use?

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. Less than 2% water on the earth

  2. Less than 1% water on the earth

  3. Less than 3% water on the earth

  4. Less than 4% water on the earth
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Concept based

Multiple choice

Where is most of the water present?

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. In rivers

  2. In lakes

  3. In oceans

  4. In plains
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Concept based

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 '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.