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

What is the reservoir of water below the surface of earth called?

  1. Groundwater

  2. Rain water

  3. Sea water

  4. Well wate
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Water is present below the earth's surface as an important resource to be stored and preserved and do not get easily evaporated. This water below the earth's surface is known as groundwater which forms the water table.

Multiple choice

In which form rain water flows down from the mountains?

  1. Ponds and Lakes

  2. Streams and rivers

  3. Spring and Lakes

  4. Canal and Ponds
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Rain water in mountains flows down in the form of streams and rivers. Stream is a body of water with a current confined within a bed and stream banks flowing down from mountains. Rivers is a natural water source flowing towards an ocean, sea or another river originating from mountains.

Multiple choice

What is the source of water for open wells?

  1. Groundwater

  2. Seas

  3. Lakes

  4. Streams
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Open wells are constructed to fetch water present deep inside the earth’s surface in the water table where water, known as groundwater, is stored and preserved for various life processes.

Multiple choice

Water from an artesian well flows up automatically due to

  1. heavy rainfall in the region

  2. volcanic activity

  3. hydrostatic pressure

  4. geothermal energy
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

An artesian well flows automatically because water is confined between impermeable layers at pressure. When the well is drilled, hydrostatic pressure forces water up without pumping, sometimes even above ground level. Heavy rainfall, volcanic activity, and geothermal energy are not the primary mechanisms for artesian flow.

Multiple choice

What are the different sources of ground water?

  1. Meteoric water

  2. Condensational water

  3. Connate water

  4. Juvenile water

  5. All of the above
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

This is the correct option. Meteoric water, condensational water, connate water and juvenile water - all are the source of ground water.

Multiple choice

Directions: In the following question the passage consists of six sentences. The first and the sixth sentences are given as S1 and S6. The middle four sentences have been removed and jumbled up. They are marked as P, Q, R, S. Arrange the sentences in their correct order after reading carefully.
S1. In the modern world the problem of the reliable water supply is extremely important because the water resources are widely exploited and water is used in different fields of human activities. P. This is happening because the water used in agriculture and industries is often impossible to recycle or filter to make it drinkable. Q. Nowadays water is used not only simply to provide people with the essential substance they consume to survive but it is also widely used in agriculture and different industries. R. In fact, the life of human beings is impossible without water. S: As a result, the water, being widely used, is naturally deteriorating in quality and decreasing in quantity. S6. In such a situation, the problem of scarcity of water as the vitally important product seems to be quite real.

  1. RPQS

  2. QPSR

  3. RQSP

  4. PRQS

  5. SRQP
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

This is the correct answer. The introductory sentence is about the effects of human activities on water resources the following sentence according to this option follows logically and is placed correctly, as it mentions the importance of water for human existence. The sentence that follows is also correct, as it tells us more about the uses of water. The next sentence also follows logically, as it describes the adverse effects on water, such as deteriorating quality and decreasing quantity. The following sentence is also logically placed, as it carries forward the statement with the information about the reasons, as to how the water quality is deteriorating, namely by usage in agriculture, which renders it difficult to reuse, recycle or filter. This leads us to the closing statement that sums up the situation logically. Thus, this option is correct.

Multiple choice

In India, the irrigation of agricultural land is carried out maximum by

  1. Canals

  2. Wells

  3. Tubewells

  4. Tanks
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Canals have historically been the largest source of irrigation in India by area covered, especially since the British colonial period when major canal systems were constructed. While tubewells have gained significant importance in recent decades, canals still irrigate the largest total area nationwide. This is particularly true in states like Punjab, Haryana, and Uttar Pradesh with extensive canal networks.

Multiple choice

From which of the following resources water used at home is supplied?

  1. River

  2. Pond

  3. Ocean

  4. Sea
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Among the given options, rivers are the primary source of freshwater used for household water supply through treatment and distribution systems. Ponds are too small-scale, while oceans and seas contain saltwater that requires extensive desalination and are not direct household water sources.

Multiple choice

Land Management Specialist: Building the Glenn Canyon dam on the Colorado river caused unforeseen environmental effects. One of these is that, by preventing annual floods, the dam prevents the river from stirring up sediments collected on the river bottom and depositing them high on the banks of the river. The deposited sediments are needed to create and maintain sandbars, which form natural habitats for native fish. By releasing water from the dam annually, we will flood the river and thus recreate the sandbars normally found below the dam. Which of the following must be true if the prediction of the land management specialist above is also to prove true?

  1. There are no other effects of the dam which will prevent the native fish of the river from using the new sandbars below the dam.

  2. The flood caused by massively releasing water from the dam will be like a natural flood in every major respect.

  3. The size of a sandbar on a river always stays the same or increases after a flood.

  4. Any other dams upriver from the Glen Canyon dam must also release enough water to cause a flood in order for the flood from the Glen Canyon dam to be successful.

  5. The dam does not prevent the flow of sediments from upriver needed to replenish the sediments that inevitably wash downstream over time.
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

(5) THE CONCLUSION: Release of water from Glenn Canyon dam annually will flood the rivers and recreate the sandbars normally found below the dam.

THE EVIDENCE: The dam prevents the stirring up of deposits at the river bottom and prevents their depositing on high bank sides. (5) just rephrases the conclusion and states that though sediments are not blocked or stopped by the dam, the hampered flow does not allow the phenomenon of sandbars to occur. So, (5) is the answer.
Multiple choice

The water table in an arid region had dropped for years due mainly to the many farms that relied on water pumped from the underlying aquifer. Water conservation measures were taken five years ago when residents realized that soon no water would be available for human use. The water table has since stabilized, but has not significantly risen. Accordingly, in order to replenish the aquifer and return the water table to its normal level, new water conservation measures need to be taken. The argument above would be most weakened if it were true that?

  1. A reduced but stable aquifer is not a serious threat to human life or agricultural productivity.

  2. Aquifers in arid regions replenish very slowly over centuries, if at all.

  3. The growth of a major city in the region has meant that agricultural demands for water are now a smaller portion of the total demand.

  4. It takes rainwater approximately one year to filter down to the aquifer and affect the level of the water table.

  5. More drastic water conservation measures would cause great personal and economic hardships on the people of the region, leading some to leave it entirely.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

(2) THE CONCLUSION: New water conservation measures need to be taken.THE EVIDENCE: The water table in arid regions has dropped The author has assumed that the water table has reduced due to aquifers used in farms and the measures taken five years ago were not sufficient since, the table level has been steady but not improved.

Multiple choice

Which one out of the following maintains the water table?

  1. Rain water

  2. Sea water

  3. Wells

  4. Spring water
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Rainwater is the primary source that maintains and replenishes the water table through infiltration into the ground. Wells, springs, and sea water are not sources that replenish groundwater - wells and springs extract from it, while seawater is separate and doesn't recharge freshwater aquifers.