Untreated waste pollutes air, water and soil, harming plants, animals and humans. It disrupts ecosystems, spreads diseases and prevents natural cycles from functioning properly, leading to long-term environmental degradation. Class 8 Social Science Textbook Chapter 1 Natural Resources and Their Use ...
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Industrial waste pollutes rivers with harmful chemicals, reducing oxygen levels, killing aquatic life and contaminating drinking water. It destroys habitats and disrupts the ecological balance of river ecosystems. Class 8 Social Science Exploring Society: India and Beyond Part 1 Solution Class 8 ...
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 ...
If timber is harvested faster than it regrows, forests can’t regenerate, leading to deforestation, habitat loss and ecosystem damage. A balanced harvesting rate ensures forest health and long-term resource availability. Class 8 NCERT Social Science India and the World: Land and ...
Forests and rivers renew themselves through natural cycles—rainfall, seed growth and water flow. If protected from overuse and pollution, they can continue providing resources and services for generations. Class 8 Social Science Chapter 1 Natural Resources and Their Use question answer Class ...