CBSE Class 10 Geography Water Resources Worksheet

MCQ Questions for Class 10 Social Science Water Resources

Question. How much of earth’s surface is covered with water ?
(a) 1/2th
(b) 1/4th
(c) 2/4th
(d) 3/4th
Answer : D

Question. Rooftop rain water harvesting was commonly praticed:
(a) To store drinking water
(b) Irrigation
(c) Gardening
(d) Industries
Answer : A

Question. 96.5 % of the total volume of world’s water exists as :
(a) rivers
(b) glaciers
(c) oceans
(d) seas
Answer : C

Question. The dams construted to control floods have triggered floods due to ¾¾¾ in the reservoir.
(a) decantation
(b) filtration
(c) sublimation
(d) sedimentation
Answer : D

Question. Which place in India receives the highest rainfall ?
(a) Shilong
(b) Kerla
(c) Mawsynram
(d) Darjeeling
Answer : C

Question. Which of the following is not a source of water ?
(a) Ocean
(b) Rain
(c) Ground water
(d) Surface water
Answer : A

Question. Nagarjuna Sagar: River Krishna, Hirakud: _________.
(a) River Narmada
(b) River Godavari
(c) River Kaveri
(d) River Mahanadi
Answer : D

Question. In the semi-arid and arid regions of Rajasthan, all the house store drinking water in 
(a) Matkas
(b) Kuls
(c) Tankas
(d) Guls
Answer : C

Question. Water produces ___________ power.
(a) Magnetic power
(b) Electric power
(c) Hydroelectricity
(d) Mechanical energy
Answer : C

Question. Which among the following is the reason of water scarcity ?
(a) Industrialisation
(b) Urbanisation
(c) Modernisation
(d) All of these
Answer : D

Question. Arrange the following events in the correct sequencei. Excess water from the sump is taken to the well.
ii. Underground pipe takes water to sump for immediate usage.
iii. Rooftop rainwater is collected using a PVC pipe.
iv. Water from the well recharges the underground water.
Options -
(A) (i)-(ii)-(iii)-(iv)
(B) (iii)-(ii)-(i)-(iv)
(C) (iv)-(i)-(iii)-(ii)
(D) (iv)-(ii)-(iii)-(i)
Answer : B

Question. Fresh water is renewed through ___________ .
(a) Nitrogen cycle
(b) Hydrogen cycle
(c) Carbon cycle
(d) Oxygen cycle
Answer : B

 Question : ________% of the total volume of world’s water is estimated to exist as oceans. 
(a) 96.5
(b) 50.69
(c) 90.5
(d) 80.4
Answer : A
Explanation: 96.5 per cent of the total volume of world’s water is estimated to exist as oceans which are not useful for the people for the industrial and domestic use. 

Question. Three-fourth of the earth‘s surface is covered with water. (True/False)
Answer : True

Question. Bihar is the region of India which experience low rainfall and is drought prone. (True/False)
Answer : False

Question. Bhopal city in India has an artificial lake to conserve water that dates back to 11th century. (True/False)
Answer : True

Question. Hirakund dam is built on Sutlej river. (True/False)
Anwer : False

Question : How much part of the earth’s surface is covered up with water?

Answer : Three-fourth of the earth’s surface is covered up with water. 

Question : Explain the consequences of growing population on water resources in regions having ample water resources.
Answer : a) Many of our cities have ample water resources but are still facing water scarcity.
b) Water scarcity may be an outcome of large and growing population and consequent greater demands for water and unequal access to it.
c) A large population means more water not only for domestic use but also to produce more food.
d) Hence, to facilitate higher food grain production, water resources are being over exploited to expand irrigated areas and dry season agriculture. 

Question : What is the need of the hour in relation to conserve water resources?
Answer : a) To conserve and manage our water resources.
b) To safeguard ourselves from health hazards.
c) To ensure food security, continuation of our livelihoods,
d) To prevent degradation of our natural ecosystem.

Question : How has the process of urbanization aggravated the problem of water requirements?
Answer : a) Most of the urban centers have their own ground water pumping devices to meet their water needs.
b) Fragile water resources are being over-exploited and have caused their depletion in most of these cities.

Question : How has the industries exerted pressure on the existing freshwater resources? 
Answer : a) This is due to intensive industrialization and urbanization which has resulted in the ever-increasing number of industries.
b) Industries, apart from being heavy users of water, also require power to run them.

Question : How are the dams classified?
Answer : Dams are classified according to
a) structure and materials used: They are classified as timber dams, embankment dams or masonry dams, with several subtypes.
b) Intended propose or height: Dams can be categorized as large dams and major dams or low dams, medium heights and high dams.

Question : Why are dams referred to as multi-purpose river valley projects? Briefly explain these giving two examples of multi-purpose projects.
Answer : Dams are referred to as multipurpose river valley projects where the many uses of the impounded water are integrated with one another as : Irrigation, electricity generation, water supply for domestic and industrial uses, flood control, recreation, inland navigation and fish breeding.
a) In Sutlej-Beas river basin, the Bhakra- Nangal project water is being used both for hydel power production and irrigation.
b) Similarly, Hirakund project in the Mahanadi basin integrates conservation of water with flood control.

Question : Cite reasons why multipurpose projects and large dams have come under great scrutiny and opposition.
Answer : a) Regulating and damming of rivers affect their natural flow causing poor sediment flow and excessive sedimentation at the bottom of the reservoir.
b) This results in rockier stream beds and poorer habitats for the rivers aquatic life.
c) Dams also fragment rivers making it difficult for aquatic fauna to migrate especially for spawning.
d) The reservoirs that are created on the floodplains also submerge the existing vegetation and soil leading to its decomposition over a period of time.

Question : Why has there been resistance to the construction of multipurpose river valley projects and large dams?
Answer : i)Resistance has been due to large scale displacement of local communities.
ii)Local people often had to give up their lands, livelihood and their minimum access and control over resources for the greater good of the nation.

Question : Which people were mobilized by the Narmada Bachao Andolan? What does it focus on? Why has it recently refocused its aim?
Answer : a) Narmada Bachao Andolan mobilized tribal people, farmers, environmentalists and human rights activists.
b) It originally focused on the environmental issues related to trees that would be submerged under the water.
c) Recently, it has refocused the aim to enable poor citizens, especially the oustees to get full rehabilitation facilities from the government.

Question : Even though irrigation has changed the cropping pattern of many regions with farmers shifting to water intensive and commercial crops, it has great ecological consequences.” Justify giving two consequences. 
Answer : a) Salination of soil.
b) It has transformed the social landscape-increased the social gap between the richer landowners and the landless poor.

Question : With regard to which issue are the inter-state water disputes becoming common?
Answer : With regard to the sharing the costs and benefits of the multi-purpose project. (The Krishna-Godavari dispute is due to the objections raised by Karnataka and Andhra PradeshGovernments. It is regarding the diversion of more water at Koyna by the Maharashtra government for a multipurpose project. This would reduce downstream flow in their states with adverse consequences for agriculture and industry.)

Long Questions for Class 10 Social Science Water Resources

Question : Give examples to describe how multi-purpose projects have faced objections as they failed to achieve the objectives for which they were built.
Answer : 
a) The dams that were constructed to control floods have triggered floods in the reservoir.
b) The big dams have mostly been unsuccessful in controlling floods at time of excessive rainfall.
c) The floods have not only devastated life and property but also caused extensive soil erosion.
d) Sedimentation also meant that the flood plains were deprived of the silt,
a natural fertilizer, further adding to the problem of land degradation.
e) These projects also induced earthquakes, water-borne diseases, and pests and pollution resulting from excessive use of water. 

Question : Describe how rainwater harvesting is carried out in the semi-arid regions of Rajasthan. 
Answer : a) In Bikaner, Phalodi and Barmer, almost all houses traditionally had underground tanks or tankas for storing drinking water.
b) These tankas, a well-developed part of rooftop harvesting system were built inside the main house or the courtyard and were connected to the sloping roofs of the houses through a pipe.
c) Rain collected on rooftop will go down the pipe and will be stored in the underground tankas.
a) The first spell of rain water will not be collected as this will clean the rooftop but the next subsequent showers will be collected.

PREVIOUS YEARS QUESTIONS:

Q1 Water is a renewable resource yet there is water scarcity in many parts of the country .Analyse the causes of water scarcity.

Q2 What is the reason behind Krishna-Godavri water dispute? Name the multipurpose river valley project constructed on river Krishna.

Q3 Explain any three disadvantages of Multi Purpose River Valley Projects? 

Q4 Write the features of theTankas built in the houses of Bikaner,Phalodi and Barmer.

Q5 Why is the scarcity of water increasing day by day in India? Explain any three reasons.

Q6 Why have multipurpose river projects have come under great scrutiny? 

Q7 Why do people oppose dams? Give one reason.  

Please click on below link to download CBSE Class 10 Geography Water Resources Worksheet