Water Resources
Madhya Pradesh Board · Class 10 · Social Science
Quick revision notes for Water Resources — Madhya Pradesh Board Class 10 Social Science. Key concepts, formulas, and definitions for last-minute revision.
Key Topics to Revise
Water Availability and the Hydrological Cycle
- Three-fourths of Earth's surface is covered with water, but only a small proportion accounts for usable freshwater
- Freshwater is obtained from surface runoff and groundwater, continuously renewed through the hydrological cycle
- The hydrological cycle includes evaporation, condensation, precipitation, and collection processes
Water Scarcity - Causes and Types
- Water scarcity occurs due to over-exploitation, excessive use, and unequal access among social groups
- Availability varies over space and time due to seasonal and annual precipitation variations
- Large populations require more water for domestic use and food production
Multi-Purpose River Projects and Dams
- Dams are barriers across flowing water that create reservoirs for multiple uses
- Multi-purpose projects integrate irrigation, electricity generation, water supply, flood control, recreation, and navigation
- Examples include Bhakra-Nangal project (Sutlej-Beas basin) and Hirakud project (Mahanadi basin)
Problems with Large Dams and Multi-Purpose Projects
- Dams affect natural river flow, causing poor sediment flow and excessive reservoir sedimentation
- River fragmentation makes it difficult for aquatic fauna to migrate and spawn
- Submergence of vegetation and soil leads to decomposition and environmental degradation
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Water Resources covers several key topics that are frequently asked in Madhya Pradesh Board Class 10 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
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