Tuna are heavily fished for commercial use. However, due to overfishing, their populations have dropped significantly. Catching tuna before they reproduce disrupts their natural cycle, pushing some species toward extinction. This affects ocean biodiversity and threatens the livelihood of fishing comRead more
Tuna are heavily fished for commercial use. However, due to overfishing, their populations have dropped significantly. Catching tuna before they reproduce disrupts their natural cycle, pushing some species toward extinction. This affects ocean biodiversity and threatens the livelihood of fishing communities. Sustainable fishing limits are essential to protect tuna and maintain marine food chains and ecological balance.
For more NCERT Solutions for Class 8 Social Science Chapter 1 Natural Resources and Their Use Extra Questions & Answer:
Industrial waste contains toxins, heavy metals and chemicals that are often dumped into rivers. This pollutes water, making it unfit for drinking, irrigation and aquatic life. Fish die due to lack of oxygen and the food chain is disrupted. Polluted rivers also affect human health and agriculture. PrRead more
Industrial waste contains toxins, heavy metals and chemicals that are often dumped into rivers. This pollutes water, making it unfit for drinking, irrigation and aquatic life. Fish die due to lack of oxygen and the food chain is disrupted. Polluted rivers also affect human health and agriculture. Proper waste treatment and eco-friendly industries are essential to protect river ecosystems.
For more NCERT Solutions for Class 8 Social Science Chapter 1 Natural Resources and Their Use Extra Questions & Answer:
When waste is not treated properly, it enters rivers, forests and fields, contaminating natural habitats. Chemicals harm plants, animals and microbes and disrupt food chains. Soil loses fertility, water becomes unsafe and air gets polluted. Such imbalances reduce Nature’s ability to regenerate and pRead more
When waste is not treated properly, it enters rivers, forests and fields, contaminating natural habitats. Chemicals harm plants, animals and microbes and disrupt food chains. Soil loses fertility, water becomes unsafe and air gets polluted. Such imbalances reduce Nature’s ability to regenerate and provide ecosystem services. Responsible waste disposal and recycling can prevent this damage and restore ecological balance.
For more NCERT Solutions for Class 8 Social Science Chapter 1 Natural Resources and Their Use Extra Questions & Answer:
Coal forms over millions of years from compressed plant remains. Because it takes such a long time to regenerate and we use it much faster than it forms, coal is classified as non-renewable. Once used, it cannot be quickly replaced. This limited supply, along with pollution from coal use, makes it uRead more
Coal forms over millions of years from compressed plant remains. Because it takes such a long time to regenerate and we use it much faster than it forms, coal is classified as non-renewable. Once used, it cannot be quickly replaced. This limited supply, along with pollution from coal use, makes it unsustainable, urging the need for renewable energy alternatives.
For more NCERT Solutions for Class 8 Social Science Chapter 1 Natural Resources and Their Use Extra Questions & Answer:
As India industrializes and urbanizes, electricity demand rises sharply. Much of this is met through coal, leading to air pollution, greenhouse gas emissions and environmental damage. The challenge is to ensure reliable power while reducing dependence on fossil fuels. This requires investment in solRead more
As India industrializes and urbanizes, electricity demand rises sharply. Much of this is met through coal, leading to air pollution, greenhouse gas emissions and environmental damage. The challenge is to ensure reliable power while reducing dependence on fossil fuels. This requires investment in solar, wind and hydropower, along with improved infrastructure, energy-saving technologies and awareness about conserving electricity.
For more NCERT Solutions for Class 8 Social Science Chapter 1 Natural Resources and Their Use Extra Questions & Answer:
How has overfishing affected the tuna population?
Tuna are heavily fished for commercial use. However, due to overfishing, their populations have dropped significantly. Catching tuna before they reproduce disrupts their natural cycle, pushing some species toward extinction. This affects ocean biodiversity and threatens the livelihood of fishing comRead more
Tuna are heavily fished for commercial use. However, due to overfishing, their populations have dropped significantly. Catching tuna before they reproduce disrupts their natural cycle, pushing some species toward extinction. This affects ocean biodiversity and threatens the livelihood of fishing communities. Sustainable fishing limits are essential to protect tuna and maintain marine food chains and ecological balance.
For more NCERT Solutions for Class 8 Social Science Chapter 1 Natural Resources and Their Use Extra Questions & Answer:
https://www.tiwariacademy.com/ncert-solutions/class-8/social-science/
See lessHow does industrial waste affect river ecosystems?
Industrial waste contains toxins, heavy metals and chemicals that are often dumped into rivers. This pollutes water, making it unfit for drinking, irrigation and aquatic life. Fish die due to lack of oxygen and the food chain is disrupted. Polluted rivers also affect human health and agriculture. PrRead more
Industrial waste contains toxins, heavy metals and chemicals that are often dumped into rivers. This pollutes water, making it unfit for drinking, irrigation and aquatic life. Fish die due to lack of oxygen and the food chain is disrupted. Polluted rivers also affect human health and agriculture. Proper waste treatment and eco-friendly industries are essential to protect river ecosystems.
For more NCERT Solutions for Class 8 Social Science Chapter 1 Natural Resources and Their Use Extra Questions & Answer:
https://www.tiwariacademy.com/ncert-solutions/class-8/social-science/
See lessHow do untreated wastes create imbalances in Nature?
When waste is not treated properly, it enters rivers, forests and fields, contaminating natural habitats. Chemicals harm plants, animals and microbes and disrupt food chains. Soil loses fertility, water becomes unsafe and air gets polluted. Such imbalances reduce Nature’s ability to regenerate and pRead more
When waste is not treated properly, it enters rivers, forests and fields, contaminating natural habitats. Chemicals harm plants, animals and microbes and disrupt food chains. Soil loses fertility, water becomes unsafe and air gets polluted. Such imbalances reduce Nature’s ability to regenerate and provide ecosystem services. Responsible waste disposal and recycling can prevent this damage and restore ecological balance.
For more NCERT Solutions for Class 8 Social Science Chapter 1 Natural Resources and Their Use Extra Questions & Answer:
https://www.tiwariacademy.com/ncert-solutions/class-8/social-science/
See lessWhy is coal considered a non-renewable resource?
Coal forms over millions of years from compressed plant remains. Because it takes such a long time to regenerate and we use it much faster than it forms, coal is classified as non-renewable. Once used, it cannot be quickly replaced. This limited supply, along with pollution from coal use, makes it uRead more
Coal forms over millions of years from compressed plant remains. Because it takes such a long time to regenerate and we use it much faster than it forms, coal is classified as non-renewable. Once used, it cannot be quickly replaced. This limited supply, along with pollution from coal use, makes it unsustainable, urging the need for renewable energy alternatives.
For more NCERT Solutions for Class 8 Social Science Chapter 1 Natural Resources and Their Use Extra Questions & Answer:
https://www.tiwariacademy.com/ncert-solutions/class-8/social-science/
See lessWhat challenges arise due to India’s increasing electricity demand?
As India industrializes and urbanizes, electricity demand rises sharply. Much of this is met through coal, leading to air pollution, greenhouse gas emissions and environmental damage. The challenge is to ensure reliable power while reducing dependence on fossil fuels. This requires investment in solRead more
As India industrializes and urbanizes, electricity demand rises sharply. Much of this is met through coal, leading to air pollution, greenhouse gas emissions and environmental damage. The challenge is to ensure reliable power while reducing dependence on fossil fuels. This requires investment in solar, wind and hydropower, along with improved infrastructure, energy-saving technologies and awareness about conserving electricity.
For more NCERT Solutions for Class 8 Social Science Chapter 1 Natural Resources and Their Use Extra Questions & Answer:
https://www.tiwariacademy.com/ncert-solutions/class-8/social-science/
See less