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2. What are the main causes of Global Warming?
Ans. The main causes of Global warming are as follows:
• Excessive use of fossil fuels like coal, oil and natural gas produces greenhouse gases-like methane, nitrous oxide and
mainly carbon dioxide which trap the sun’s radiation within the atmosphere resulting in rise in global temperature.
• Trees absorb CO from the atmosphere and release oxygen instead, so they work as air purifiers. Deforestation due
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to urbanisation and industrialisation has reduced the number of trees on the earth. This has resulted in the increase
of carbon dioxide level in the atmosphere.
• Overconsumption of natural resources due to population explosion has also contributed to global warming.
• Increase in pollution is also responsible for the rise in global warming.
3. How mining activities all across the globe are responsible for significant environmental damage?
Ans. Mining activities worldwide contribute to significant environmental damage through several activities:
• Acid mine drainage, which is the formation and movement of highly acidic water rich in heavy metals, contaminates
the surrounding water bodies.
• Mining can deplete surface and groundwater supplies.
• To get the land for mining, the forest in that area is destroyed. This has a negative impact on the plants and animals
living in that region.
• When the mining is over and that area is abandoned, then it creates wastage of land which is suitable neither for
industrial use nor for agricultural purpose.
4. Give three important characteristics of the Green Economy.
Ans. The three important characteristics of the Green Economy:
• Well-being and prosperity for all people by providing good education, decent livelihoods and jobs.
• Supporting human rights and social equity especially the rights of under-privileged and minorities.
• Nurturing the geographical boundaries to safeguard, restore and invest in nature. It protects the biodiversity and
natural ecosystems.
5. Give two necessary reasons for adapting to the Green Economy.
Ans. Adapting to the Green Economy is necessary for two key reasons:
• It is an effort of the whole world to create a healthy planet by using alternative ways of growth and development that
improves quality of life of people through sustainable development.
• It also means healthy clean air to breathe, pure water to drink and wholesome food to eat for all without exhausting
our present natural resources and saving it for the future generations to come.
6. Define the Green Projects in India. Give examples.
Ans. The environmentally friendly projects that aim to reduce pollution, reduce fossil fuel consumption or some other
positive effects on the environment are called Green Projects. For example:
• Digital Green: It is a multimedia solution for rural education.
• Solid Waste Management by ‘Swachh Cooperative’: This green project is wholly owned by waste pickers.
• Bio Toilet by ‘Green Solution Foundation’: it has created a bio-toilet solution for hygienic sanitation in villages and
slums that lacked sewage systems.
7. Give any four environmental benefits of the Green Economy.
Ans. The four environmental benefits of the Green Economy are:
• It helps in decreasing environmental pollution, which is a big effort to protect the environment without degrading
the quality of soil, water and air.
• It helps in reducing the negative impacts of greenhouse gases by adopting technologies and products that minimise
carbon emissions. This will work in reducing global warming.
• Less damage to our forests and biodiversity will help in survival of rare species on the earth.
• It helps in eco-friendly sustainable management of natural resources.
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