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5. Coal And Petroleum Science class 8 in English Medium ncert book solutions Additional Questions With Solutions
5. Coal And Petroleum Additional Questions With Solutions – Complete NCERT Book Solutions for Class 8 Science (English Medium). Get all chapter explanations, extra questions, solved examples and additional practice questions for 5. Coal And Petroleum Additional Questions With Solutions to help you master concepts and score higher.
5. Coal And Petroleum Science class 8 in English Medium ncert book solutions Additional Questions With Solutions
NCERT Solutions for Class 8 Science play an important role in helping students understand the concepts of the chapter 5. Coal And Petroleum clearly. This chapter includes the topic Additional Questions With Solutions, which is essential from both academic and examination point of view. The solutions provided here are prepared strictly according to the latest NCERT syllabus and follow the guidelines of CBSE to ensure accuracy and relevance. Each question is explained in a simple and student-friendly manner so that learners can grasp the concepts without confusion. These NCERT Solutions are useful for regular study, homework help, and exam preparation. All textbook questions are solved step by step to improve problem-solving skills and conceptual clarity. Students of Class 8 studying Science can use these solutions to revise important topics, understand difficult questions, and practise effectively before examinations. The chapter 5. Coal And Petroleum is explained in a structured way, making it easier for students to connect the theory with the topic Additional Questions With Solutions. By studying these updated NCERT Solutions for Class 8 Science, students can build a strong foundation, boost their confidence, and score better marks in school and board exams.
5. Coal And Petroleum
Additional Questions With Solutions
Additional Questions With Solutions
Q12: 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.
See other sub-topics of this chapter:
1. Chapter Review 2. Text Book Exercise 3. Text Book Exercise 4. Additional Questions With Solutions 5. Additional Questions With Solutions