Class 8 Exam > Class 8 Videos > Natural Gas - Coal and Petroleum, Class 8 Science
Natural Gas - Coal and Petroleum, Class 8 Science Video Lecture
FAQs on Natural Gas - Coal and Petroleum, Class 8 Science Video Lecture
| 1. What is natural gas? |  |
Ans. Natural gas is a fossil fuel that is formed deep within the Earth's crust over millions of years. It consists mainly of methane and is often found alongside oil and coal deposits. It is primarily used for heating, cooking, and generating electricity.
| 2. How is natural gas different from coal and petroleum? | |
Ans. Natural gas, coal, and petroleum are all fossil fuels, but they have different compositions and properties. Natural gas is primarily composed of methane, while coal is a solid fuel formed from the remains of plants and petroleum is a liquid fuel derived from ancient marine organisms. Natural gas is the cleanest burning fossil fuel, producing fewer emissions and pollutants compared to coal and petroleum.
| 3. How is natural gas extracted? | |
Ans. Natural gas is extracted through a process called drilling. Wells are drilled into underground reservoirs where natural gas is trapped. Once a well reaches the gas reservoir, the gas is released and brought to the surface through pipes. Extraction of natural gas also involves the use of advanced technologies such as hydraulic fracturing (fracking) in some cases.
| 4. What are the advantages of using natural gas? | |
Ans. There are several advantages of using natural gas. Firstly, it is a cleaner fuel compared to coal and petroleum, releasing fewer greenhouse gases and pollutants when burned. Secondly, natural gas is abundant and widely available, making it a reliable energy source. Additionally, natural gas is versatile and can be used for various purposes such as heating, cooking, and electricity generation.
| 5. Are there any environmental concerns associated with natural gas? | |
Ans. While natural gas is considered cleaner than coal and petroleum, there are still environmental concerns associated with its extraction and use. The drilling and extraction process can have negative impacts on ecosystems, water sources, and local communities. Additionally, natural gas is a non-renewable resource, meaning it will eventually deplete. To mitigate these concerns, it is important to carefully regulate and monitor natural gas extraction activities and promote the use of renewable energy sources.
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Nov 24, 2024 Last updated |
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