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 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' is an idiom meaning things that are connected or occur together. In this context, it means the hydrosphere and life are inseparably linked. 'Together' captures this meaning of close association. 'Stay with' is too literal, 'as friends' anthropomorphizes incorrectly, and 'immovably' means fixed in place.

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

An 'active' hydrosphere means one with a functioning, operating water cycle. In this context, 'running' describes a water cycle that is working properly and continuously. Functional means serving its intended purpose or operating as expected, which best fits the meaning of a properly functioning water cycle.

Multiple choice

The process of evaporation of water in nature is one of the basic components of the hydrological cycle. The other process that is considered to be essential for the completion of the hydrological cycle is the

  1. flow tide and ebb tide in a river

  2. movement of water vapour in the atmosphere

  3. flow of water in the sea

  4. movement of water in the water table
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The hydrological cycle requires evaporation (liquid to gas) and condensation/precipitation (gas to liquid). Water vapor movement in the atmosphere completes the cycle by transporting evaporated water from oceans to land where it precipitates. River tides, sea flow, and groundwater movement are secondary processes, not essential cycle components.

Multiple choice

What is underground water?

  1. Water that is spilled onto the ground

  2. Water beneath the ground surface

  3. The bottom part of sea or ocean

  4. Recharge water

  5. Water collected in pit holes
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Groundwater is water located beneath the earth's surface and this water can be use to serve multiple purposes such as water plants, domestic use, etc.

Multiple choice

In conventional dams, the power extracted from the water depends on the volume and on the difference in heights of the source and the water's outflow. This difference in heights is referred to as

  1. head

  2. neck

  3. leg

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

Most of the hydroelectric power comes from the potential energy of dammed water driving a water turbine and generator. The power extracted from the water depends on the volume and on the difference in heights of the source and the water's outflow. This height difference is called the head. The amount of potential energy in water is proportional to the head.

Multiple choice

Besides urination, another important activity in which water is substantially lost from body is

  1. salivation

  2. defaection

  3. expiration

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

Expiration (breathing out) causes substantial water loss through water vapor in the breath. The air we exhale is nearly saturated with water vapor from the respiratory tract. Salivation is not a loss activity, defecation involves minimal water compared to breathing, and inspiration brings air into the body.

Multiple choice

Which of the following is a source of groundwater?

  1. Rain water that seeps deep into the ground forms groundwater.

  2. Surface snow m<font face="Arial">elts</font> in the summer and finds its way to underground areas.

  3. <font face="Arial"><font size="2">H</font>ail that settles <font size="2">on the top of mountain melts down at times due to rise in temperat<font size="2">ure, and </font></font></font>seeps deep into underground areas.

  4. <font face="Arial"><font size="2">E</font>xcess water that <font size="2">leaks from plant roots seeps into underground areas and forms ground water. </font></font>

  5. Volcanic eruptions lead to burial of rivers and ponds, thus forming groundwater.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Study of water is hydrology. Meteorology is the study of atmosphere, geology is the study of solid earth and pedology is the study of soil. 

Multiple choice

Evaporation of water from a pond is an example of

  1. isolated system

  2. open system

  3. closed system

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

A system which can exchange matter as well as energy with the surroundings is called an open system. For example, water in a pond as it can gain or lose matter and energy with the surroundings.

Multiple choice

How does a reservoir-type hydropower plant help the environment?

  1. Helps in irrigation and in controlling floods

  2. Helps in controlling rainfall patterns

  3. Helps in preserving natural habitat

  4. Helps in stabilising the ecosystem of adjoining areas
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A hydropower plant helps in irrigation and in controlling floods.