1. The most significant environmental problems are related to which type of resources?

The most serious environmental issues are mainly connected with renewable resources such as air and water. These resources can absorb waste only up to a certain limit. If pollution goes beyond this limit, the ecosystem gets damaged very quickly.

2. Discuss the role of sustainable development in providing financial stability.

Sustainable development helps in building financially stable economies. Countries that do not have fossil fuels can depend on renewable energy sources. Development of renewable energy creates long-term jobs instead of limited jobs based on fossil fuels.

3. What are the forms of sustainable agriculture?

Sustainable agriculture involves growing crops by using resources wisely without harming the environment. Examples include crop rotation, organic farming, use of bio-fertilisers and bio-pesticides, and combining crop farming with animal farming.

4. What is required to achieve sustainable development?

To achieve sustainable development, economic, environmental and social aspects must be properly balanced and integrated at all levels.

5. Define sustainable development according to the Brundtland Report.

According to the Brundtland Report, sustainable development means meeting the needs of the present generation without reducing the ability of future generations to meet their own needs.

6. How does sustainable development help in managing climate change?

Sustainable development reduces the use of fossil fuels like petrol, diesel and coal. Burning fossil fuels causes greenhouse gas emissions which lead to global warming and climate change. Using renewable energy helps reduce this problem.

7. Write any three challenges to sustainable development.

• Rapid population growth may cause environmental damage.
• Poor management of natural resources along with economic growth creates pressure on the environment.
• Rising income may increase environmental demands and sometimes worsen environmental problems.

8. Which industries should be relocated outside cities?

Industries that cause heavy pollution should be shifted away from residential areas. These industries pollute air and water, which affects the health of humans and animals.

9. Mention any four development goals given by the United Nations Sustainable Development Summit 2015.

• Ensure access to affordable and clean energy for all.
• Promote inclusive and sustainable economic growth and employment.
• Build strong infrastructure and encourage innovation.
• Reduce inequalities within and among countries.

10. How can forests be saved from being cut?

• Recycle and save paper.
• Avoid buying products made from wild animals.
• Collect forest products like honey without destroying natural habitats.

11. How can electricity be used efficiently?

• Switch off lights and appliances when not in use.
• Use renewable sources like solar energy.
• Use public transport or car-pool to save fuel.

12. How can the fisheries industry be protected?

• Create awareness about overfishing.
• Encourage sustainable fishing methods.
• Avoid buying endangered fish species.

13. How can waste be managed?

• Follow the principle of Reduce, Reuse and Recycle.
• Use eco-friendly disposal methods.
• Dispose electronic and hazardous waste properly.

14. Why is sustainable development necessary?

• It promotes maximum use of resources without wastage.
• It improves people’s knowledge and attitude towards conservation.
• It supports economic growth without harming the Earth.

15. What will happen if we ignore environmental warning signs?

If we ignore environmental problems, the condition of Earth will worsen. Humans must act responsibly to protect the planet for future generations. Environmental challenges should motivate us to work towards a better future.

16. Why is the concept of sustainable development criticised?

Some people question how we measure the well-being of present and future generations. Future generations will inherit both environmental problems and the benefits of development like education and technology. Therefore, we must consider physical, human and natural resources together.

17. Suggest measures to maintain sustainable development considering increased cereal demand.

Food production must increase mainly by improving crop yields on existing land instead of cutting forests. Protecting natural habitats and using scientific farming methods is necessary.

18. How can water and forests be managed?

Water Management:

• Use water carefully.
• Repair leaking taps.
• Treat wastewater before releasing it.

Forest Management:

• Recycle paper.
• Avoid wildlife products.
• Protect natural habitats.

19. Explain short-term solutions for sustainable development.

• Stop illegal deforestation.
• Maintain balance between cutting and planting trees.
• Recycle waste properly.
• Use rainwater harvesting.
• Adopt eco-friendly farming practices.

20. How can we protect the environment while travelling?

• Travel in groups and save resources.
• Practice eco-tourism.
• Avoid littering.
• Walk or cycle for short distances.
• Use electric vehicles if possible.

21. How did the idea of sustainable development originate?

The idea began with sustainable forest management in Europe during the 17th and 18th centuries. It became popular in the 20th century due to environmental concerns. In 1987, the Brundtland Report titled “Our Common Future” defined sustainable development as meeting present needs without harming future generations. It highlights two main ideas: priority to basic needs of the poor and limitations of technology and environment.