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 evs receding water table patterns of cropping rotation of crops common irrigation systems

Water from rivers is the only source for irrigation in the fields

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
  • Irrigation is the application of controlled amounts of water to plants at needed intervals. Irrigation helps to grow agricultural crops, maintain landscapes, and revegetate disturbed soils in dry areas and during periods of less than average rainfall.
  • Sources of irrigation water include groundwater, through springs or wells, surface water, through rivers, lakes, or reservoirs, or even other sources, such as treated wastewater or desalinated water.
  • Hence Water from rivers is the only source for irrigation in the fields is a false statement.
  • So, the correct answer is 'False'.
Multiple choice evs - i receding water table patterns of cropping rotation of crops common irrigation systems

Which irrigation technique is considered the most water efficient? 

  1. Surface

  2. Drip

  3. Sprinkler

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

Drip irrigation is most economical and efficient technique of irrigation. Watering plants by drip irrigation method is a more economical way of watering plants. In this technique, water is supplied drop by drop near the plant roots through the small opening is called as drippers. By this method, there is no loss of water due to seepage, runoff or evaporation. Thus, the correct answer is option B.

Multiple choice evs receding water table patterns of cropping rotation of crops common irrigation systems

Of the following all are the traditional method of irrigation except

  1. Chain pump

  2. Pulley system

  3. Persian wheel

  4. Basin irrigation
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
Basin irrigation is a type of surface irrigation especially in regions with layouts of small fields having level surfaces and surrounded by low bunds which prevent the water from flowing to the adjacent fields. This method is generally suitable for crops that are unaffected by standing water for long periods. for e.g., rice cultivation areas.
Chain pump, pulley system, and persian wheel belongs to the traditional system of irrigation.
So, the correct answer is option D.
Multiple choice evs - i receding water table patterns of cropping rotation of crops common irrigation systems

Which of the following irrigation procedure is/are followed when the land of cultivation is huge and the availability of water is scarce?

  1. Drip irrigation

  2. Furrow irrigation

  3. Basin irrigation

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

A. Drip irrigation is a system of micro-irrigation system that allows the water to drip slowly to the roots of the plants.It is done in places where water is scarce. 

B. Sprinkler irrigation is the method of applying water to a controlled manner in that is similar to rainfall. This too is done to reduce the wastage of water . 
C. Furrow irrigation is conducted by small parallel channels among the field length in the direction of slope . 
D. Basin irrigation is where water is applied & distributed over the soil surface by gravity. 
So the correct options is ' Drip Irrigation & Sprinkler irrigation ' .

Multiple choice biology natural resources and agriculture patterns of cropping rotation of crops common irrigation systems

_____ is an elaborate and extensive irrigation system.

  1. Canal system

  2. Wells

  3. Tanks

  4. River valley system
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Canal system is a type of irrigation system in which water can be supplied to one or more farms at once. The canal irrigation system was an important means in 1960. Now canals are the second largest source of the irrigation system. The Indira Gandhi canal is the largest canal system in India. Now, it os 2nd largest source of canal irrigation.

So, the correct option is 'Canal system'.

Multiple choice biology natural resources and agriculture patterns of cropping rotation of crops common irrigation systems

_____ are constructed wherever plenty of exploitable ground water is available.

  1. Wells

  2. Canal system

  3. Tanks

  4. River lift system
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Well system is based on the availability of ground water. In the well irrigation system, the wells are constructed wherever exploitable ground water is present.

Thus, the correct answer is option A.

Multiple choice biology natural resources and agriculture patterns of cropping rotation of crops common irrigation systems

What is/are the disadvantage/s of tube well irrigation system?

  1. Groundwater is used as the source

  2. Can be dug at any convenient place

  3. Simplest and the cheapest source

  4. Both A and B
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Tube well irrigation system is a type is a system in which water is supplied to the fields by connecting large pipes 100-200 mm. The main disadvantage is it leads to depletion of groundwater due to which groundwater reserves may get exhausted.

So, the correct option is 'Groundwater is used as the source'.

Multiple choice biology natural resources and agriculture patterns of cropping rotation of crops common irrigation systems

Furrow irrigation is a type of .......... irrigation.

  1. Tube well

  2. Basin

  3. Surface

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

Furrow irrigation is a type of irrigation in which water runs on the surface in small ditches and furrows. It is conducting by creating small parallel channels for the flow of water on the surface. 

So, the correct option is 'Surface'.

Multiple choice biology natural resources and agriculture patterns of cropping rotation of crops common irrigation systems

In India, under canal net-work system of irrigation, generally, how much amount of water is allowed to run in small canal?

  1. Less than 4 cusec

  2. Less than 10 cusec

  3. Between 15 to 20 cusec

  4. Between 25 to 30 cusec
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Canal irrigation was started in 1960, these are human-made channels for water transportations. India has the largest canal system starting for Harike Barrage and terminates in irrigation facilities in the Thar Desert, it is known as The Indira Gandhi Canal. Now, canal irrigation is 2nd largest source of water transportation in the world.

So, the correct option is 'Less than 10 cusec'.

Multiple choice chemistry air and atmosphere natural cycles and resources constituents of air component of air - nitrogen

The main source of water for perennial rivers is in the form of:

  1. lakes

  2. rain water

  3. snow

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

Perennial rivers flows continuously throughout the year irrespective of seasons. Mostly they originates from the mountain and water is fed by melting of glaciers. These river get water by rain in rainy season, melting of ice in summer and by snow in winter.

Multiple choice physics the kinetic model of matter evaporation heat, internal energy and work phase change

From below what are used to prevent pesticides, fertilizers and salt from agricultural wastewater from contaminating the water bodies they flow into?

  1. Evaporation ponds

  2. Vaporising ponds

  3. Fermented ponds

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

Evaporation ponds are used. Evaporation ponds are artificial ponds with very large surface area that are designed to efficiently evaporate water by sunlight and exposure to the ambient temperature.

Multiple choice physics the kinetic model of matter evaporation heat, internal energy and work phase change


Which is the final step of a water cycling driving small turbines before it is fed back into the primary pool?

  1. Evaporation

  2. Fermentation

  3. Sublimation

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

Evaporation is the final step of a water cycling driving small turbines before it is fed back into the primary pool. Water vapours are moving in the pipe at high speed under pressure exposed to turbine; which makes turbine rotate; left water vapour again condenses and go back in liquid state.

Multiple choice biology transport in plant transport of water and minerals conduction of water and minerals absorption of water and minerals in plants

A water-logged soil is physiologically dry because of

  1. Anaerobic conditions

  2. Non movement of water capillaries

  3. Increased viscosity of water

  4. Abundance of salts
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Water-logging indicates to the concentration of soil with water. When the soil is saturated with water over the course of time leads to blockage of air phases and anaerobic condition is succeeded, now the soil may be regarded as waterlogged. In the intense condition (physiologically dry) continued waterlogging leads to anaerobiosis (life sustaining by organism in the absence of oxygen), mostly occurs to mesophytes roots, denitrification and methanogenesis due to reduced atmosphere. 

So, the correct answer is option A.