باب کا خلاصہ
Water is essential for life, زراعت, صنعت and domestic use. Uneven rainfall, rising demand and over-exploitation create پانی stress, making تحفظ, rainپانی harvesting and careful management اہم.
درسی کتاب پر مبنی تفصیلی تصورات
Water scarcity
Scarcity may result from population growth, intensive irrigation, urbanisation, industrialisation and unequal access. Even areas with rainfall can experience shortages when demand is high.
Multipurpose river projects
Dams can provide irrigation, hydroelectricity, flood control, پانی supply, navigation and recreation. They may also cause displacement, ecological change and conflicts over benefits and costs.
Integrated پانی management
Water planning must consider river basins, groundپانی, surface پانی, زراعت, cities and ecosystems together rather than treating each use separately.
Rainپانی harvesting
Collecting and storing rainپانی can recharge groundپانی and reduce dependence on distant supplies. Traditional and modern systems are used in different regions.
Groundپانی and irrigation
Excessive pumping can lower پانی tables. Efficient irrigation, پانیshed management and crop choices can reduce pressure on groundپانی.
Water تحفظ
Reducing wastage, reusing پانی, protecting catchments and maintaining recharge areas are key components of sustainable پانی management.
آخری وقت کی دہرائی
Revise the definitions, causes, effects, examples, comparisons and textbook activities. Practise map/figure-based points where applicable and answer the chapter exercises in your own words.