Class 10 Geography Chapter 3 Notes
Chapter - 3 (Water Resources)
Here we are going to solve all the questions from NCERT class 10 Geography chapter 3 notes. while preparing all the MCQ and question answer we have done deep study of NCERT class 10th book. we also try to provide all of you the quality answer/content for all the questions.
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1. Multiple choice questions.
(i) Based on the information given below classify each of the situations as ‘suffering from water scarcity’ or ‘not suffering from water scarcity’.(a) Region with high annual rainfall.
(b) Region having high annual rainfall and large population.
(c) Region having high annual rainfall but water is highly polluted.
(d) Region having low rainfall and low population.
Answer - (a) Not suffer from water scarcity.
(b) Suffering from water scarcity.
(c) Suffering from water scarcity.
(d) Not suffer from water scarcity.
(ii) Which one of the following statements is not an argument in favour of multipurpose river projects?
(a) Multi-purpose projects bring water to those areas which suffer from water scarcity.
(b) Multi-purpose projects by regulating water flow helps to control floods.
(c) Multi-purpose projects lead to large scale displacements and loss of livelihood.
(d) Multi-purpose projects generate electricity for our industries and our homes.
Answer - (c) Multi-purpose projects lead to large scale displacements and loss of livelihood.
(iii) Here are some false statements. Identify the mistakes and rewrite them
correctly.
(a) Multiplying urban centres with large and dense populations and urban lifestyles have helped in proper utilisation of water resources.
Answer - Multiplying urban centres with large and dense populations and urban lifestyles have caused the over exploitation of water resources.
(b) Regulating and damming of rivers does not affect the river’s natural flow and its sediment flow.
Answer - Regulating and damming of rivers affect their natural flow and causes the sediment to settle at the bottom of the reservoir.
(c) In Gujarat, the Sabarmati basin farmers were not agitated when higher priority was given to water supply in urban areas, particularly during droughts.
Answer - In Gujarat, the Sabarmati basin farmers were agitated when higher priority was given to water supply in urban areas, particularly during droughts.
(d) Today in Rajasthan, the practice of rooftop rainwater water harvesting has gained popularity despite high water availability due to the Rajasthan canal.
Answer - Today in Rajasthan, the practice of rooftop rainwater water harvesting has gained popularity despite low water availability due to the Rajasthan canal.
2. Answer the following questions in about 30 words.
(i) Explain how water becomes a renewable resource.Answer - water continuously evaporates from the Earth's surface, it collects in the atmosphere to later falls back to the Earth as rain. This freshwater is mainly obtained from surface run off and ground water that is continually being renewed and recharged through the hydrological cycle. All water moves within the hydrological cycle ensuring that water is a renewable resource.
(ii) What is water scarcity and what are its main causes?
Answer - The moment we speak of water scarcity, we immediately associate it with regions having low rainfall or those that are drought prone. Water scarcity in most caused by over- exploitation, excessive use and unequal access to water among different social groups.
(iii) Compare the advantages and disadvantages of multi-purpose river projects.
Answer - Today multi-purpose river projects help not only for irrigation but for electricity generation, water supply for domestic and industrial uses, flood control, recreation, inland navigation and fish breeding. But due to these projects a large number of Local people often had to give up their land, livelihood and the reservoirs also destroyed local flora and fauna.
3. Answer the following questions in about 120 words.
(i) Discuss how rainwater harvesting in semi-arid regions of Rajasthan is
carried out.
Answer - In the semi-arid regions of Rajasthan, particularly in Bikaner, Phalodi and Barmer, almost all the houses traditionally had underground tanks for storing drinking water. The tanks could be as large as a big room.
The tanks were part of the well-developed rooftop rainwater harvesting system and were built inside the main house or the courtyard. They were connected to the sloping roofs of the houses through a pipe. Rain falling on the rooftops would travel down the pipe and was stored in these underground tanks.
The rainwater can be stored in the tanks till the next rainfall making it an extremely reliable source of drinking water when all other sources are dried up, particularly in the summers. Rainwater as it is commonly referred to in these parts, is considered the purest form of natural water. Many houses constructed underground rooms adjoining the ‘tanka’ to beat the summer heat as it would keep the room cool.
The tanks were part of the well-developed rooftop rainwater harvesting system and were built inside the main house or the courtyard. They were connected to the sloping roofs of the houses through a pipe. Rain falling on the rooftops would travel down the pipe and was stored in these underground tanks.
The rainwater can be stored in the tanks till the next rainfall making it an extremely reliable source of drinking water when all other sources are dried up, particularly in the summers. Rainwater as it is commonly referred to in these parts, is considered the purest form of natural water. Many houses constructed underground rooms adjoining the ‘tanka’ to beat the summer heat as it would keep the room cool.
Answer - Still in many parts of rural and urban India, rooftop rainwater harvesting is being successfully adapted to store and conserve water. In Gendathur, a remote backward village in Mysuru, Karnataka, villagers have installed, in their household’s rooftop, a rainwater harvesting system to meet their water needs. Nearly 200 households have installed this system and the village has earned the rare distinction of being rich in rainwater.
Tamil Nadu is the first state in India which has made roof top rainwater harvesting structure compulsory to all the houses across the state. There are legal provisions to punish the defaulters.
FAQ
Q. What is the name of Chapter 3 geography class 10th?Answer - Water Resources.
Answer - Yes water is a renewable resource. The freshwater is mainly obtained from surface run off and ground water that is continually being renewed and recharged through the hydrological cycle. water continuously evaporates from the Earth's surface, it collects in the atmosphere to later falls back to the Earth as rain.
