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- Scientists theorize that life originated from water, hence nearly all organisms need water to exist and survive. Water also forms the base for all living organisms. As much water is lost from our bodies, the same or more needs to be replenished.
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Jul 22, 2022 · Water is neither acidic nor basic in nature. It has a pH of 7, making it a neutral substance. These unique qualities of water, along with its abundance on the planet (approximately 71% of the Earth’s surface is made up of water), make it a crucial resource for plants, animals, and human beings.
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- In our body, water brings nutrients to all the cells and oxygen to our brain. Water enables nutrients, proteins, amino acids, glucose and other com...
- To start, we all use water to drink, wash, clean, prepare, and grow food, making it our most precious survival resource. What contributes to the da...
- Providing potable water is probably the most important of all public utilities. For drinking, heating, cleaning, carrying away waste, and other dom...
- To start, we all use water to drink, wash, clean, prepare, and grow food, making it our most precious survival resource. What contributes to the da...
- The cornerstone of our lives is water. The human body needs water for everyday life. We can live without any food for a week, but we can not even s...
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1. How is freshwater obtained Answer:The freshwater is obtained from precipitation, surface run off and groundwater that is continually being renewed and recharged through the hydrological cycle. 2. What is hydrological cycle Answer:The continuous movement of water on, above and below the surface of earth. 3. What is the importance of hydrological ...
1. What is hydrological cycle? What is its importance Answer:The continuous movement of water on, above and below the surface of earth is known as hydrological cycle. The 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 hydr...
1. How have the growing population, industrialisation and urbanisation led to water scarcity Explain.[CBSE 2008 (D)] Or Explain any four reasons responsible for water scarcity in India. [CBSE 2010(D), Sept. 2012] Or How have industrialisation and urbanisation aggravated water scarcity in India [CBSE Sept. 2010, 14] Or Give three reasons for water s...
1. Write the features of the ‘tankas’ built in the houses of Bikaner, Phalodi and Banner. [CBSE 2013] Answer: (i) The tanks could be as large as a big room; one household in Phalodi had a tank that was 6.1 meters deep, 4.27 meters long and 2.44 meters wide. (ii) The tankas were part of the well-developed rooftop rainwater harvesting system and were...
Sep 29, 2015 · Water molecules are essential to the functioning of most known life-forms because of water's unique chemical properties, researchers say.
In Chapter 3 of Class 10 Geography, you will learn about water resources. The chapter begins with the availability of fresh water on earth and how the situation of scarcity of water generates. The chapter discusses the pros and cons of constructing dams on rivers.
Jan 22, 2024 · Water Resources Class 10 Notes Social Science Geography Chapter 3. Fresh water: 96.5 per cent of the total volume of world’s water is estimated to exist as oceans and only 2.5 per cent exists as fresh water. 70 per cent of the fresh water occurs as ice sheets and glaciers in Antarctica, Greenland and the mountainous regions of the world.
CBSE Class 10 Geography Chapter 3 is all about water resources. It starts by discussing the availability of freshwater on earth and the scarcity of water, as well as the reasons leading to this situation.
