Water Resources Class 10 NCERT Solutions help students understand the important concepts of this Geography chapter clearly and simply. Included in the CBSE Class 10 syllabus, this chapter explains the significance of water as a vital resource, its various types, and its role in agriculture, industry, and daily life.
It also covers the challenges of water scarcity, the need for proper management, and methods of conservation. These solutions provide step-by-step explanations, real-life examples, and insights into sustainable use, making it easier for students to grasp the concepts and prepare effectively for exams.
NCERT Solutions Class 10 water resources question answers help students understand key concepts of water, its types, and importance in daily life and the environment. These answers also explain challenges like water scarcity and methods for conservation, making learning simple and useful for exams.
These are the topics that students will cover in this chapter.NCERT Solutions for Class 10 Water Resources help students understand the key concepts of water, its types, importance, and management in a simple way. Check all questions and answers here:
(i) Based on the information given below, classify each of the situations as ‘suffering from water scarcity’ or ‘not suffering from water scarcity’.
(a) A region with high annual rainfall.
(b) A region having high annual rainfall and a large population.
(c) A region having high annual rainfall but water is highly polluted.
(d) A region having low rainfall and low population.
Answer:
(a) A region with high annual rainfall – Not suffering from water scarcity
(b) A region having high annual rainfall and large population – Suffering from water scarcity
(c) A region having high annual rainfall but water is highly polluted – Suffering from water scarcity
(d) A region having low rainfall and low population- Not suffering 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 help 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.
(b) Regulating and damming of rivers does not affect the river’s natural flow and its sediment flow.
(c) In Gujarat, the Sabarmati basin farmers were not 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 Indira Gandhi Canal.
Answer:
(a) Multiplying urban centres with large and dense populations and urban lifestyles have resulted in improper utilisation of water resources.
(b) Regulating and damming of rivers does affect the river’s natural flow and its sediment flow.
(c) 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 popularity has declined due to high water availability from Indira Gandhi Canal.
2) Explain how water becomes a renewable resource.
Answer:
Since there will always be rain and three processes that make up the hydrological cycle, groundwater, and surface water will constantly be replenished, making water a renewable resource. The 3 processes of the hydrological cycle are(ii) What is water scarcity and what are its main causes?
Answer:
Numerous cities in our country serve as such. Therefore, a big and expanding population may lead to increased demands for water and uneven access to it, potentially resulting in water scarcity. More water is needed in a large population, both for home usage and for food production. Water resources are therefore being overused to increase the area under irrigation for dry-season agriculture to enable higher food-grain output. Water use in agriculture is mostly driven by irrigation. To improve productivity, the majority of farmers have their own wells and tube wells on their properties. The people's access to water and food security have suffered as a result.(iii) Compare the advantages and disadvantages of multi-purpose river projects.
Answer:
Advantages:(i) Discuss how rainwater harvesting in semi-arid regions of Rajasthan is carried out.
Answer:
Nearly every home in Rajasthan's semi-arid and desert regions—especially in Bikaner, Phalodi, and Barmer—has historically included an underground tank, or tanka, to hold drinking water. One family in Phalodi had a tank that measured 6.1 meters deep, 4.27 meters long, and 2.44 meters wide—the size of a huge room. The complex rooftop rainwater gathering system included the tankas, which were built either inside the main house or in the courtyard. They were attached to the sloping roofs of the dwellings by a pipeline. Rain that fell on the rooftops would pass through the pipe and collect in these "tankas" below ground. Usually, the initial round of rain was not collected since the pipes and roofing would be cleaned. After that, rainwater from the next showers was gathered. When all other supplies of drinking water run dry, especially during the summer, the rainwater may be kept in the tankas until the next downpour. This makes it an incredibly dependable source of water. Rainwater, or "palar pani" as it is known locally, is regarded as the purest type of natural water.(ii) Describe how modern adaptations of traditional rainwater harvesting methods are being carried out to conserve and store water.
Answer:
A practical substitute in terms of the environment and socioeconomics is a water harvesting system. In addition to highly developed hydraulic systems, ancient India had a remarkable water-harvesting system legacy. By the local ecological conditions and their water demands, people created a wide range of strategies to extract rainwater, groundwater, river water, and floodwater. They also had an extensive understanding of rainfall regimes and soil types. For agricultural purposes, people in hilly and mountainous areas constructed diversion channels similar to the Western Himalayan "guls" or "kuls." In Rajasthan in particular, "Rooftop rainwater harvesting" was a popular method of storing drinking water. Agricultural fields were transformed into rain-fed storage structures, known as "khadins" in Jaisalmer and "Johads" in other areas of Rajasthan, in arid and semi-arid regions, so that the water could stand and hydrate the soil.Water becomes a renewable resource because it is continuously replenished through the natural water cycle. Processes like evaporation, condensation, and rainfall ensure that water returns to rivers, lakes, and groundwater sources. This constant circulation allows water to be reused again and again, making it a renewable resource when managed properly.
