Overfishing has drastically reduced tuna numbers, threatening their survival. When caught faster than they can reproduce, tuna populations decline, affecting marine ecosystems and people dependent on them for food or income. Class 8 NCERT Social Science India and the World: Land ...
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Due to excessive irrigation of water-intensive crops like rice and wheat, Punjab’s farmers overused tube wells, leading to rapid groundwater depletion. Lack of rainwater recharge worsened the crisis. Class 8 Social Science Exploring Society: India and Beyond Class 8 Social Science Chapter ...
Renewable resources like sunlight and forests regenerate over time, while non-renewable ones like coal and minerals deplete permanently. Misusing renewable resources can make them scarce. Wise, sustainable use ensures availability for future generations and preserves ecological balance. Class 8 NCERT Social ...
Nature restores and regenerates itself. Trees regrow, water cycles continue and ecosystems rebalance. But this natural recovery works only when humans use resources responsibly and avoid harming the environment beyond its limits. Class 8 Social Science Exploring Society: India and Beyond ...
People reuse plastic containers, store rainwater and plant trees. Festivals avoid plastic decorations. Elders advise turning off lights. These habits show respect for nature and reduce waste and overuse of resources. Class 8 Social Science Exploring Society: India and Beyond Class 8 ...