Class 7 Social Science - ICSE-GEOGRAPHY
Water Resources
The chapter 'Water Resources' for Class 7 ICSE Geography explores the distribution, importance, and conservation of water on Earth. Students will learn about the hydrological cycle, sources of fresh water, and the growing crisis of water scarcity. It emphasizes the need for efficient water management techniques such as rainwater harvesting and watershed management. For ICSE board exams, this chapter is crucial as it tests students on geographical terminology, human impact on natural resources, and practical methods of conservation, making it a high-scoring section for structured and map-based questions.
Start Learning FreeKey Concepts
Hydrological Cycle
The continuous movement of water on, above, and below the surface of the Earth through evaporation, condensation, precipitation, and collection.
Water Scarcity
The shortage of fresh water resources to meet the standard water demand, caused by over-utilization, excessive use, and unequal access among different social groups.
Rainwater Harvesting
The method of collecting and storing rainwater from rooftops or surface run-off for future use, helping to recharge groundwater levels.
Multipurpose River Projects
Large dams and reservoirs built across rivers to serve multiple objectives simultaneously, such as irrigation, electricity generation, flood control, and fish breeding.
Groundwater
Water held underground in the soil or in pores and crevices in rock, representing a major source of freshwater for drinking and agriculture.
Important Formulas
Board Exam Info
In ICSE Class 7 Geography, this chapter typically carries around 5 to 8 marks. Questions frequently appear as short-answer definitions, give-reasons type questions about water scarcity, and descriptive questions on methods of water conservation and advantages of multipurpose projects.
Frequently Asked Questions
Why is most of the Earth's water not fit for human consumption?
About 97.3% of Earth's water is saline water found in oceans and seas, which is too salty for drinking or irrigation without desalination.
What is the main difference between groundwater and surface water?
Surface water is found in rivers, lakes, and ponds on the Earth's surface, while groundwater is water that seeps into the ground and fills spaces in rocks and soil.
Why are multipurpose river projects sometimes controversial?
While they provide energy and water, they often cause large-scale displacement of local communities, submergence of forests, and disruption of aquatic ecosystems.
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