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Mindmap: Coal and Petroleum | Science Class 8

The document Mindmap: Coal and Petroleum | Science Class 8 is a part of the Class 8 Course Science Class 8.
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FAQs on Mindmap: Coal and Petroleum - Science Class 8

1. What are the advantages of using coal as an energy source?
Ans. Coal has several advantages as an energy source, including its abundance and relatively low cost. It is also a reliable source of energy and can be easily transported and stored.
2. How does the extraction of petroleum impact the environment?
Ans. The extraction of petroleum can have significant environmental impacts. It can lead to habitat destruction, water pollution, and the release of greenhouse gases. Additionally, oil spills from offshore drilling can have devastating effects on marine ecosystems.
3. Is it possible to convert coal into liquid or gaseous fuels?
Ans. Yes, coal can be converted into liquid or gaseous fuels through a process known as coal gasification. This technology allows for the production of synthetic natural gas, as well as liquid fuels like diesel and gasoline.
4. What are the major uses of petroleum other than fuel?
Ans. Petroleum has numerous uses apart from being a fuel source. It is a key ingredient in the production of plastics, lubricants, and chemicals. Additionally, petroleum is used in the manufacturing of various consumer products, such as clothing, cosmetics, and detergents.
5. How does the burning of coal contribute to air pollution?
Ans. The burning of coal releases pollutants into the atmosphere, including sulfur dioxide, nitrogen oxides, and particulate matter. These pollutants can contribute to the formation of smog and acid rain, as well as respiratory and cardiovascular health issues in humans.
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