Class 12 Geography - KERALA
Water Resources
The chapter 'Water Resources' in Kerala SCERT Class 12 Geography explores the distribution, availability, and utilization of water resources globally and specifically in India. It highlights the critical issues of water scarcity, degradation of water quality, and the urgent need for sustainable management through conservation techniques like rainwater harvesting and watershed management. For board exams, this chapter is crucial as it frequently features questions on causes of water scarcity, measures for conservation, and case studies related to river pollution and management. Understanding these concepts helps students analyze real-world environmental challenges discussed in the syllabus.
Start Learning FreeKey Concepts
Water Scarcity
Low availability of fresh water compared to the demand, caused by over-exploitation, excessive use, and unequal access among different social groups.
Watershed Management
The efficient management and conservation of surface and groundwater resources by bringing about optimal balance between natural resources and human use within a watershed.
Rainwater Harvesting
A method of capturing and storing rainwater for domestic and agricultural use, helping to recharge groundwater levels and mitigate urban flooding.
Eutrophication
The enrichment of water bodies with nutrients like nitrates and phosphates from agricultural runoff, leading to excessive plant growth and depletion of dissolved oxygen.
Haryali Project
A watershed development project sponsored by the Central Government which aims to enable the rural population to conserve water for drinking, irrigation, fisheries, and afforestation.
Important Formulas
Board Exam Info
In the Kerala (SCERT) Class 12 Geography board examination, this chapter typically carries around 4 to 6 marks. Common question types include short answers on causes of water scarcity, descriptive questions on watershed management and rainwater harvesting, and map-based or case-study questions related to river basin management.
Frequently Asked Questions
What are the main causes of water scarcity in India?
The primary causes include growing population leading to greater domestic and food demand, intensive agricultural practices requiring heavy irrigation, industrialization, and pollution of water sources.
Why is watershed management considered important?
It helps in preventing runoff, recharging groundwater, conserving soil and water, and increasing biomass production, thereby ensuring ecological balance and sustainable rural livelihoods.
How does rainwater harvesting help in urban areas?
It reduces reliance on municipal water supply, prevents urban flooding by minimizing surface runoff, and recharges depleted groundwater aquifers.
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