3. Expert Answer: Formation of Coal: Coal was formed by the decomposition of large land plants and trees buried under the Earth about 300 million years ago. Where are chromosomes found in the cell? SECTION B III. (b) Coal and petroleum are formed from the dead remains of organisms and are known as _____. The slow process of conversion of dead vegetation into coal is called a) Carbonisation b) fuelification c) Coalification d) None of the above. 8. A coal mine is shown in Fig. As coal contains mainly carbon, the slow process of conversion of dead vegetation into coal is called carbonisation. Describe how coal is formed from dead vegetation. Answer: Exhaustible resources – forests, wildlife, coal Inexhaustible resources – air, sunlight, water. Sep 23,2020 - How coal form with dead vegetation? Answer: (D) carbonisation. What is this process called? Explain why fossil fuels are exhaustible natural resources. bti-europe.eu. These dense forests got compressed as more and more soil got deposited over them. (d) During the processing of coal to get coke, coal … Coal is a combustible black or brownish-black sedimentary rock, formed as rock strata called coal seams.Coal is mostly carbon with variable amounts of other elements; chiefly hydrogen, sulfur, oxygen, and nitrogen. As more soil deposited over them, they were compressed. Coal contains mainly carbon. (b) Coal and petroleum are formed from the dead remains of organisms and are known as _____. The temperature also rose as they sank deeper and deeper. Ans: 300 million years ago, earth had dense forests in low lying wetlands. Temperature rose as they sank deeper and under high pressure dead plants converted slowly to coal. Slow conversion of dead vegetation Into coal b. Deposition of soil c. falling of trees d. None of these Ans . A COAL MINE 7. Solution: Millions of years ago, dense forests got buried under the soil due to natural processes like storms, floods, and earthquakes. What is this process called? 8 Which substance is formed by the carbonisation of dead vegetation? Describe how coal is formed from dead vegetation. The slow process of conversion of dead vegetation into coal is called _____. Answer. We get coal deep inside the Earth's crust in coal mines. This results in a slowing of the rate of biomass growth, which is caused by fading of vegetation. Answer. 14 các ví dụ: The plants covered about 33 per cent, of the ground, there were 18 to the… Coke is used in the manufacturing of a. bti-europe.eu. 14. About 300 million years ago the earth had dense forests in low lying wetland areas. Coal Mine . Answer: (a) 6. Give two differences between a zygote and a foetus. Coal is produced in industry to get a. Coke b. This process of conversion of dead vegetation to coal is known as (a) Coal is formed by the decomposition of large land plants and trees buried under the earth about 300 million years ago. These new ideas can explain the growth of the vegetation now in the coal beds. As coal contains mainly carbon, the slow process of conversion of dead vegetation into coal is COAL AND PETROLEUM 57 58 SCIENCE Fig. B. evolution. 16. The slow process of conversion of dead vegetation into coal is known as carbonization. (b) 16. Answer. (d) 17. (a) vegetation only (b) animals only (c) both vegetation and animals (d) neither vegetation nor animals Answer. What is this process called? Solution: Plants contain mainly carbon, which gets converted into coal. (c) Least polluting fuel for vehicle is _____. As coal contains mainly carbon, the slow process of conversion of dead vegetation into coal is called carbonisation. Question 6. Carbon monoxide b. With flooding these forests were buried under soil. Question 8. In India petroleum deposit was first found in the state of a) Gujarat b) Maharastra c) Assam d) West Bengal. process of conversion of dead vegetation into coal is called carbonisation. Since it was formed from the remains of vegetation, coal is also called a fossil fuel. (a) 15. As coal contains mainly carbon, the conversion of dead vegetation into coal is called carbonization. Answer: Coal is a fossil fuel derived from organic matter. This process of formation of coal from dead vegetation is called carbonization. As coal contains mainly carbon, the conversion of dead vegetation into coal is called carbonization. (c) The black thick liquid with unpleasant smell is known as coal tar. The estimated quantity depends on how thick a pile of vegetation, called peat, needs to be compressed and converted into coal. Answer: (c) 7. Describe how coal is formed from dead vegetation. Coal tar c. Coal gas d. All of these Ans . Assertion: the slow process of conversion of dead vegetation into coal is called catenation. State their functions. Reason: When heated in air, coal burns and produces mainly carbondioxde gas. Coal is used in thermal power plants to produce electricity. Answer: (a) carbonisation. CBSE Class 8 Science Chapter 5 Coal and Petroleum Objective Questions . What is this process called? Answer. • Since it was formed from the remains of vegetation, coal is also called a fossil fuel. How is sound produced in our throat? (c) The black thick liquid with _____ smell is known as coal tar. Define carbonisation. When they got buried deep in the soil, they were exposed to very high pressure and temperature. These got compressed as more and more soil got deposited over them. 4. About 300 million years ago, the Earth had dense forests in the low lying wet areas. Under high pressure and … Coal is formed when dead plant matter decays into peat and is converted into coal by the heat and pressure of deep burial over millions of years. Fossil fuels are formed over a period of millions of years, by the action of high temperature and high pressure on the remains of dead plants and animals. (d) During the processing of coal to get coke, coal … It is usually claimed that it takes a peat layer 8–10 feet thick to produce each foot of coal.3 2 See answers arnav188 is waiting for your help. Coal was formed by decomposition of dead plants and trees (dead vegetation) into carbon. Question. Vegetation is an important part of the environment but may be subjected to disturbance in areas close to coal mines. • When heated in air, coal burn and produces mainly carbon dioxide gas. Add your answer and earn points. Lead b. Under high pressure and high temperature, the dead plants those got buried inside the Earth, got slowly converted into coal. | EduRev Class 8 Question is disucussed on EduRev Study Group by 184 Class 8 Students. Answer:Coal was formed by the decomposition of large land plants and trees buried under the Earth about 300 million years ago.About 300 million years ago, the E… arnav188 arnav188 7 minutes ago Science Primary School Describe how coal is formed from dead vegetation. Classify the following as exhaustible and inexhaustible natural resources- air, sunlight, water, forests, wildlife, coal. describe how coal is formed in dead vegetation what is the process called. (c) The black thick liquid with _____ smell is known as coal tar. What is this process called. The first step of coal formation was created by [...] the accumulation of dead vegetation at the bottom of [...] the swamps, giving a spongy brown material, called peat. they were compressed, As more soil deposited over them. 2. (d) During the processing of coal to get coke, coal tar and coal gas are also obtained. (d) During the processing of coal to get coke, coal … Post Answer. Coal is one of the fuels used to cook food. Các ví dụ của dead vegetation trong câu, cách sử dụng. 5.2: A coal mine Coal Gas Coal gas is obtained during the processing of coal to get coke. D. carbonisation. Very short answer type questions: (1x7=7) 1. (b) Process of separation of different constituents from petroleum is called _____. Asked by ashokbabuyadla | 28th Jul, 2018, 05:45: PM. Conversion of dead vegetation into coal is called (a) carbonisation (b) distillation (c) coal gas (d) natural gas. COAL • As coal contains mainly carbon, the slow process of conversion of dead vegetation into coal is called carbonization. The wide, shallow seas of the Carboniferous Period provided ideal conditions for coal formation, although coal is known from most geological periods. Coal is the largest source of energy for the generation of electricity contains mainly carbon, the conversion of dead vegetation into coal is called carbonization. Answers (1) M manish. Under these conditions, these slowly got converted into coal. C. carbonification. 15. (b) Coal and petroleum are formed from the dead remains of organisms and are known as _____. Dec 18,2020 - Describe how coal is formed from dead vegetation what is this process called? Question 4: Fill in the blanks: (a) Fossil fuels are _____, _____ and _____. Due to natural calamities, like flooding, these forests got buried under the soil. (a) The slow process of conversion of dead vegetation into coal is called carbonisation. Describe how coal is formed from dead vegetation. (a) The slow process of conversion of dead vegetation into coal is called_____. 5.2. A. decomposition. (b) Coal and petroleum are formed from the dead remains of organisms and are known as fossil fuels. Simultaneously, carbon stored in vegetation is constantly released, weakening vegetation ability to act as a carbon sink. (c) The black thick liquid with _____ smell is known as coal tar. The process of transforming of dead vegetation by various natural, chemical as well as physical reactions into the black substance coal is known as Carbonisation. | EduRev Class 8 Question is disucussed on EduRev Study Group by 160 Class 8 Students. Carbonization is process of conversion of dead vegetation into coal. (a) The slow process of conversion of dead vegetation into coal is called_____. When dead plants got buried into the bottom of the soil they slowly converted into coal due high pressure and high temperature. Check the below NCERT MCQ Questions for Class 8 Science Chapter 5 Coal and Petroleum with Answers Pdf free download. Carbon dioxide c. Nitrogen dioxide d. Oxygen Ans . 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