Students of ICSE Class 10 should refer to Conventional Sources Of Energy ICSE Class 10 Geography Questions below which have come in past board exams. You should always go through questions that have come in previous years. This will help you to understand the pattern of questions in ICSE Class 10 Geography and prepare accordingly. This will help you to get better marks in ICSE Class 10 Board Exams
ICSE Class 10 Geography Conventional Sources Of Energy Important Questions
Students should learn the important questions and answers given below for Chapter Conventional Sources Of Energy in Geography for ICSE Class 10. These board questions are expected to come in the upcoming exams. Students of ICSE Class 10th should go through the Important questions and answers ICSE Class 10 Geography which will help them to get more marks in exams.
Board Exam Questions Conventional Sources Of Energy ICSE Class 10 Geography
Question. Name one important area that has large coal deposits in the states of Jharkhand and West Bengal.
Answer: Jharia in Jharkhand and Raniganj in West Bengal have large coal deposits.
Question. Name the largest coalfield in India.
Answer: The largest coalfield in India is in Jharia in Jharkhand.
Question. Name two states that have huge deposits of the Gondwana coal.
Answer: The two states that have huge quantity of coal deposit are Jharkhand, West Bengal.
Question. Name two industries that use high quantity of coal.
Answer: Iron and steel industry and cement industry use high quantity of coal.
Question. Which country is the largest producer of coal in South Asia ?
Answer: India is the largest producer of coal in South Asia.
Question. Name one refinery which belongs to the private sector.
Answer: The Reliance Petroleum Limited at Jamnagar in Gujarat belongs to private sector.
Question. Name the two geological ages of coal.
Answer: Gondwana : Over 200 million years in age.
Tertiary : Over 55 million years ago.
Question. Name the biggest oilfield in India.
Answer: Digboi oilfield situated in Lakhimpur district of upper Assam is the biggest oilfield in India.
Question. State the importance of coal as a source of power.
Answer: Coal is a basic source of energy as it can be used for running machines,trains, ships and dynamos.
Question. What are conventional sources of energy ?
Answer: Conventional sources of energy are those which have been used by man for a long time and are still being tapped and used abundantly.
Question. Which variety of coal is popular for domestic use? Give a reason for your answer.
Answer: Anthracite and Bituminous are the two varities of coal which are popular for domestic use. These type of coal produce less smoke and soot.
Question. State the different varieties of coal ?
Answer: Coal can be classified into the following varieties :
(i) Anthracite (ii) Bituminous
(iii) Lignite (iv) Peat
Question. Mention any two disadvantages of hydel power.
Answer: (i) The cost of building dams for producing hydroelectricity is quite high.
(ii) Building a large dam alters the natural water-table level.
(iii) Building a large dam can cause serious geological damage like triggering earthquakes in the area.
(iv) Building dams to produce electricity, displaces many people from the area and distrubs their life physically, mentally and psychologically.
Question. Where is Hirakud Dam located ? Give any three of its uses.
Answer: Hirakud Dam is built across the Mahanadi River, about 15 km from Sambalpur in Odisha.
Uses :
(i) The dam supports two different hydroelectric power houses.
(ii) The dam regulates the flow of the Mahanadi river and produces hydroelectricity through several hydroelectric plants.
(iii) The dam helps control floods in the Mahanadi delta and irrigates 75,000 square kilometeres of land.
Question. What is Natural Gas ? Name two variants of natural gas.
Answer: Natural gas occurs in association with mineral oil. Therefore, an oilfield yields natural gas almost invariably. It is mainly composed of methane (95%) with small amounts of propane and ethane. It is a fossil fuel.
(i) Liquefied Petroleum Gas (LPG) : The gas supplied for household use is called LPG (Liquefied Petroleum Gas) and is a by-product obtained after refining crude oil.
(ii) Compressed Natural Gas (CNG) : It is being used as an alternative to petrol and diesel for transport of vehicles. Delhi has totally switched over to CNG where buses and autorickshaws run on this fuel.
Question. What are the advantages of coal as a source of energy?
Answer: (i) Coal is the source of thermal power (electricity), running trains and machines and dynamas ships.
(ii) It is one of the chief raw materials needed in the manufacturing of iron and steel.
(iii) Coal is used as the direct source of energy for domestic heating in patterie s iron and brass founries, cooking, in bri ck kilns, tile manufacturing etc.
(iv) A variety of chemical like benzol and ammonia are obtained as the byproducts of coal which are given off when coal is burnt in a closed chamber to get hard coke or metallurgical coke.
Question. Why is petroleum called the ‘fossil fuel’ ?
Answer: Fossil fuel is formed by from the decayed plants, animals and other marine organisms called ‘fossils’, that have been preserved in the earth’s crust over, a long period of time by pressure, bacterial process and geothermal heat. Therefore they it is called ‘fossil fuel’.
Question. What does natural gas consist of? Why is it always found in along with crude oil ?
Answer: (i) Natural gas consist of 95% of methane and small quantities of propane and ethane.
(ii) It is always found in association with crude oil because both are formed by the decomposition of remain of dead animals and plants buried under the earth.
Question. Mention any two advantages of hydel power.
Answer: (i) Hydel power is a clean, non-polluting source of energy. The water used does not contaminate air or water by producing harmful wastes or poisonous bi-products.
(ii) It does not produce any Greenhouse Gases and prevents us from the harmful effects of Global Warming.
(iii) It is a renewable sources of energy which can be used again and again.
(iv) The dams built to produce hydroelectricity help to save and restore water.
(v) It is economical and sustainable as it saves on fossil fuels and is cheaper than electricity produced from fossil fuels and nuclear power.
Question. Oil refineries are located close to oilfields or near ports.
Answer: Most of the refineries are located near the oilfield or near the coast to minimise the cost of transport and to avoid the risk of transporting the oil inside the country due to its inflammable nature.
Question. The location of coal fields is an important factor in industrial development.
Answer: Coal is bulky raw material and its cost of transportation is very high. Hence the location of coal fields is an important factor in industrial development.
Question. Petroleum called ‘liquid gold’.
Answer: Not even a tiniest part of crude petroleum goes waste or remains unused. That is why petroleum is called ‘liquid gold.’
Question. Name the three varieties of coal and give the uses of any two of them.
Answer: Varieties and uses of coal :
(i) Anthracite :
(a) Coal is ideal for domestic use as it is smokeless fuel with high calorific value.
(b) It is used for metallurgical processes and in iron and steel industry.
(ii) Bituminous coal :
(a) Coking coal is uses in iron and steel smeltin.
(b) High grade bituminous coal is also used for domestic purposes.
(iii) Lignite :
(a) It is found in Tamil Nadu, Rajasthan, West Bengal, Kerala and Puducherry.
(b) It is used for the generation of electricity.
(iv) Peat :
Peat occurs on the Nilgiri mountains in patches, in Kashmir valley and swampy areas of coastal plains.
Question. Explain the coal formation process ?
Answer: (i) It occurs as a sedimentary rock in association with carbonaceous shale, sandstone and even fine clay.
(ii) Coal is formed due to the accumulation of vegetable matter in swampy areas or broad deltas, coastal plains and basin lowlands.
(iii) This vegetative matter was subjected to geological processes that resulted in physical and chemical changes.
(iv) The mass of vegetative matter was probably changed into coal by heat and pressure generated by the increasing weight of overlying sediments and also by the movements of the earth.
Question. ‘The cost of building a dam is very high but its advantages outweigh its cost.’ Justify.
Answer: The cost of building a dam is very high but its advantages outweigh its cost because :
(i) Hydel power is a clean, non-polluting source of energy. The water used does not contaminate air or water by producing harmful wastes or poisonous bi-products.
(ii) It does not produce any Greenhouse Gases and prevents us from the harmful effects of Global Warming.
(iii) It is a renewable sources of energy which can be used again and again.
(iv) The dams built to produce hydroelectricity help to save and restore water.
(v) It is economical and sustainable as it saves on fossil fuels and is cheaper than electricity produced from fossil fuels and nuclear power.
