Toppers Study Toppers Study Toppers StudyGet complete NCERT Solutions for 8 Science 5. Coal And Petroleum with detailed explanations. Easy-to-understand answers to help students study effectively and score better.
Get complete NCERT Solutions for 8 Science 5. Coal And Petroleum with detailed explanations. Easy-to-understand answers to help students study effectively and score better.
Preparing for exams becomes easier with Additional Questions With Solutions. Whether you are studying for board exams or mid-term exams, 8 Science Chapter 5. Coal And Petroleum solutions provide quick revising points, well-structured answers, and additional practice material to help you score better.
ncert_solutionsQ12: Name the petroleum product is used for surfacing of roads?
Ans: These days bitumen, a petroleum product is used for surfacing the roads in place of coaltar.
Q13: Described how coal is formed from dead vegetation. What is this called?
Ans: About 300 million years ago, earth was having dense forests in low lying wet land areas. Due to earthquakes and vocaline eruptions, these forest got buried under the soil. As more soil deposited over them, they were compressed. The temperature also raised as they sank deeper and deeper. Due to high temperature and lack of oxygen dead plants inside the earth got slowly converted to coal.
Q14: Explain why fossil fuels are exhaustible natural resources?
Ans: Fossile fuels are present in nature in limited quantity and are being exhausted abundantly by us that is why fossil fuels are called exhaustible natural resources.
Q15: Describe characteristics and uses of coke.
Ans: coke is a tough porous black substance It is almost pure form of carbon. It is used in manufacture of steel and in the extraction of many metals.
Q16: Explain the formation of petroleum?
Ans: Petroleum is formed from organism living in the sea. When these organisms died, their bodies settle at the bottom of sea and got covered with layers of sand and clay. Over million of years, they were transformed into petroleum, oil and natural gas under the absence of air and presence of high pressure.
Additional Questions With Solutions are created by experts to give step-by-step explanations. Around 60–70% of exam questions are based on NCERT concepts. Our 8 Science Chapter 5. Coal And Petroleum solutions help you understand the core concepts and practice effectively.
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In short, Additional Questions With Solutions for 8 Science Chapter 5. Coal And Petroleum are a complete study package. With quick revising points, NCERT exercises, and additional important questions, you can prepare effectively for exams. Make these solutions your study companion and excel in your academic journey.
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