Please refer to Assignments Class 10 Social Science Minerals and Energy Resources Chapter 5 with solved questions and answers. We have provided Class 10 Social Science Assignments for all chapters on our website. These problems and solutions for Chapter 5 Minerals and Energy Resources Class 10 Social Science have been prepared as per the latest syllabus and books issued for the current academic year. Learn these solved important questions to get more marks in your class tests and examinations.
Minerals and Energy Resources Assignments Class 10 Social Science
ONE MARK QUESTIONS
Question. Which state of India is the largest producer of Bauxite?
Ans : Odisha is the largest producer of Bauxite in India.
Question. Name the most abundantly available fossil fuel in India.
Ans : Coal is the most abundantly available fossil fuel in India.
Question. Name any one nuclear power station found in India.
Ans : Kalpakkam in Tamil Nadu.
Question. At which place in India, experimental project for geothermal energy has been Set-up?
Ans : Manikaran.
Question. Which is the highest petroleum-producing area in India?
Ans : Mumbai High is the highest petroleum- producing area in India.
Question. What is hematite?
Ans : Hematite ore is the most important industrial iron ore in terms of the quantity used.
Question. Why should the use of cattle cake as fuel be discouraged?
Ans : The use of cattle cake as fuel should be discouraged because it creates pollution. It consumes most valuable manure which could be used in agriculture.
Question. Name the gulf that provides ideal conditions for utilising tidal energy in India.
Ans : Gulf of Khambhat and Gulf of Kuchchh in Gujarat provide ideal conditions for utilising tidal energy in India.
Question. Which is the oldest oil producing state of ‘ India?
Ans : Assam.
Question. What is biogas energy?
Ans : Bio gas is produced from shrubs, farm waste, animal and human wastes.
Question. How are ‘Gobar Gas Plants’ beneficial to the farmers?
Ans : ‘Gobar Gas Plants’ are beneficial to the farmers in the form of energy and improved quality of manure.
Question. Which rock consists of single mineral only?
Ans : Limestone.
Question. Which of the following is the highest quality hard coal
(a) Bituminus
(b) Anthrasite
(c) Lignite
(d) None of the above
Ans. (b) Anthrasite
Question. Assertion (A): Solar energy is an example of conventional source of energy.
Reasoning (R): Solar energy is an example of clean energy.
Option:
(a) Both A and R are correct and R is the correct explanation of A
(b) Both A and R are correct but R is the not the correct explanation of A
(c) A is correct but R is wrong
(d) A is wrong but R is correct
Ans. (d) A is wrong but R is correct
Question. Assertion (A): Copper is used to make electrical wire.
Reasoning (R): Copper is insulator of electricity.
Option:
(a) Both A and R are correct and R is the correct explanation of A
(b) Both A and R are correct but R is the not the correct explanation of A
(c) A is correct but R is wrong
(d) A is wrong but R is correct
Ans. (c) A is correct but R is wrong
Question. ……………….. is a source of atomic energy.
Ans. Urenium/Thorium
Question. Why is Tidal energy called as clean source of energy?
Ans. No harm to environment
Question. What is ore?
Ans. Naturally occurring substances from which minerals can be extracted profitably.
Question. Why is coal called as the fossil fuel?
Ans. Because it is formed by the decomposition of fossils that buried deep into the earth millions of year ago.
Question. What are the different methods of conservation of energy?
Ans. • Reduce
• Reuse
• Recycle
• Replace
Question. The future of solar energy is bright in India’. Evaluate.
Ans. 1. Photovoltaic technology converts Sunlight directly into electrical energy.
2. Clean source of energy.
3. All usage of electrical energy
Question. Differentiate between ferrous and non- ferrous minerals.
Ans.
THREE MARKS QUESTIONS
Question. Describe any three important uses of coal as a source of energy.
Ans : Importance of coal as a source of energy in India are:
a. Coal is the most abundantly available fossil fuel in India.
b. It provides a substantial part of the nation’s energy needs.
c. It is used for power generation.
d. It supplies energy to industry as well as for domestic needs.
Question. Which are the two main minerals used to obtain nuclear energy? Name any two states where these minerals are found.
Ans : Nuclear or atomic energy is obtained by altering the structure of bn atom; When such an alteration is made, much energy is released in the form of heat and this is used to generate electric power.
a. Uranium and Thorium are used for generating atomic or nuclear power.
b. They are available in Jharkhand and Rajasthan.
Question. Why is it essential to use renewable sources of energy?
Ans : a. Non-renewable sources are going to exhaust such as coal, petrol, natural gas etc. They can cause environmental pollution therefore, we have to use’ renewable resources.
b. India has abundance of solar energy, wind, water and biomass.
c. Rising prices of oil and gas and their shortage have raised uncertainties about energy resources in the future.
Question. Name the non-metallic mineral which can split easily into thin sheets. Mention its uses.
Ans : Mica is the non-metallic mineral which can be split easily into thin sheets.
Mica is used in:
a. Electric and electronic industries: Mica is used in these industries due to its excellent dielectric strength, low power loss factor, insulating properties and resistance to high voltage.
b. Plastic industry uses mica as an extender and filler.
Question. Which are the potential sources of biogas? State any four benefits of biogas.
Ans : Potential sources of biogas are: Shrubs, farm wastes, animal waste, human waste, etc.
Four benefits of biogas are:
a. Its calorific value is high.
b. It burns without smoke, causing no pollution. c. It is the cheapest gaseous fuel.
d. Biogas plants provide twin benefits to the farmer in the form of energy and improved quality of manure.
Question. What are the uses of copper? Name the two leading copper producing states of India.
Ans : Uses of copper:
a. In manufacturing electrical cables.
b. In electronic industries.
c. In chemical industries.
The two leading copper producing states of India are Madhya Pradesh and Rajasthan.
Question. Describe any three non-conventional sources of energy.
Ans : Non-conventional sources of energy are:
a. Solar Energy: India is a tropical country. It has enormous possibilities of trapping solar energy. Photovoltaic technology converts sunlight directly into electricity. Solar energy is rapidly becoming popular in rural and remote areas.
b. Wind Energy: India now ranks as a ‘wind super power’ in the world. The largest wind farm cluster is located in Tamil Nadu from Nagercoil to Madurai. Apart from these, Andhra Pradesh, Karnataka, Gujarat, Kerala, Maharashtra and Lakshadweep have important wind farms. Nagercoil and Jaisalmer are well-known for effective use of wind energy in the country.
c. Biogas: Shrubs, farm waste, animal and human waste are used to produce biogas for domestic consumption in rural areas. Biogas plants using cattle dung are known as ‘Gobar Gas Plants’ in rural India. These provide twin benefits to the farmer in the form of energy and improved quality of manure.
Question. What are the two main ways of generating electricity? How are they different from each other? Explain.
Ans :
Question. How is mining activity hazardous? Explain.
or
How is the mining activity injurious to the health of the miners and environment? Explain.
or
“Mining affects health and environment both.” Comment.
or
How is mining activity hazardous? Explain.
Ans : The mining activity is injurious to the health of the miners and environment as:
a. The dust and noxious fumes inhaled by miners make them vulnerable to pulmonary diseases.
b. The risk of collapsing mine roofs.
c. Inundation on coal mines are a constant threat to miners.
d. The water sources in the region get contaminated due to mining.
e. Dumping of waste and slurry leads to degradation of land, soil and increase in stream and river pollution.
FIVE MARKS QUESTIONS
Question. Why is energy needed? How can we conserve energy resources? Explain.
Ans : Energy is required for all activities. It is needed to cook, to provide light and heat, to propel vehicles and to drive machinery in industries.
To conserve energy resources:
1. Need to develop a sustainable path of energy development, i.e., energy development but not at the cost of environment or needs of future generation.
2. Judicious use of limited energy resources.
3. Wastage of minerals should be minimised.
4. Modem technology should be used for the exploitation of energy resources.
5. Export of energy resources should be minimised.
6. Use of substitutes in order to save energy resources.
7. Encourage recycling of energy resources.
Question. Explain any three values which inspire us to conserve our energy resources.
Ans : Values:
a. Our responsible behaviour will lead us to conserve energy resources.
b. Our sustainable thinking which inspires us to preserve and protect the resources for the future generation.
c. Our consciousness towards our environment will inspire not to over-utilize the resources and exploit them.
Question. How can biogas solve the energy problem mainly in rural India? Give your suggestions.
Ans : Biogas to solve energy problem:
1. Availability of raw material.
2. Awareness to be created about biogas.
3. It will reduce the burden on conventional sources of energy.
4. Educate the rural people about the use of biogas.
5. It is a renewable source of energy.
6. Eco-friendly.
7. Model structures to be introduced by the government agencies at a subsidised rate.
Question. Consumption of energy in all forms has been rising all over the country. There is an urgent need to develop a sustainable path of energy development and energy saving. Suggest and explain any three measures to solve this burning problem.
or
In the present day energy crisis, which step will you take for saving energy?
Ans : The following steps can be taken for saving energy:
1. Judicious use of energy resources.
2. Use of public transport/ car pool.
3. To use bicycle for short distances.
4. Switching off electrical gadgets when not in use.
5. Regular cleaning of gas burners and switching off the gas regulator when not in use.
6. Avoid using refrigerator/ A. C. when not needed.
7. Creating awareness in neighbourhood with catchy slogans.
8. As India has been blessed with abundance of sunlight, water, wind and biomass, we must use these to overcome present day energy crisis.
Question. “Minerals are indispensable part of our lives”. Support the statement with example.
Ans : Minerals are an indispensable part of our lives:
a. Almost everything we use, from a tiny pin to a towering building or a big ship, all are made from minerals.
b. The railway lines and the tarmac (paving) of the roads, our implements and machinery too are made from minerals.
c. Cars, buses, trains, aeroplanes are manufactured from minerals and run on power resources derived from the earth.
d. Even the food that we eat contains minerals.
e. In all stages of development, human beings have used minerals for their livelihood, decoration, festivities, religious and ceremonial rites.
Question. India is presently one of the least energy efficient countries in the world. We have to adopt cautious approaches for the judicious use of our limited energy resources.” Analyse this statement.
or
Explain any three steps to be taken to conserve the energy resources.
or
How can we save our limited energy sources? Suggest any three ways for its judicious use.
Ans : The statement is right to a great extent. Therefore, we need to adopt a cautious approach for the judicious use of energy resources.
1. Need to develop a sustainable path of energy development, i.e., energy development but not at the cost of environment or needs of future generation.
2. Judicious use of limited energy resources,
3. Wastage of minerals should be minimised,
4. Modem technology should be used for the exploitation of energy resources.
5. Export of energy resources should be minimised.
6. Use of substitutes in order to save energy resources.
7. Encourage recycling of energy resources.
Question. Which is the most abundantly available fossil fuel in India? Assess the importance of its different forms.
Ans : Abundantly available fossil fuel in India is coal. Importance of its different forms are:
a. Peat has low carbon and high moisture content and low heating capacity
b. Lignite is a low grade brown coal which is soft with high moisture content. It is used for generating electricity.
c. Bituminous is the most popular coal of commercial use. It has a special value for smelting iron in blast furnaces.
d. Anthracite is the highest quality hard coal.
Question. There is an urgent need to develop a sustainable path of energy development. Give two broad measures for it. As concerned citizens, how can you help to conserve energy?
Ans : Twin planks/measures:
(i) Promotion of energy conservation.
(ii) Increased use of renewable energy sources.
As concerned citizens we can do our bit by:
(i) Using public transport systems instead of individual vehicles.
(ii) Switching off electricity when not in use.
(iii) Using power-saving devices.
(iv) Using non-conventional sources of energy.
SOURCE BASED QUESTIONS
Question. Read the extract and answer the following questions-
We use different things in our daily life made from metal. Can you list a number of items used in your house made of metals. Where do these metals come from? You have studied that the earth’s crust is made up of different minerals embedded in the rocks. Various metals are extracted from these minerals after proper refinement. Minerals are an indispensable part of our lives. Almost everything we use, from a tiny pin to a towering building or a big ship, all are made from minerals. The railway lines and the tarmac (paving) of the roads, our implements and machinery too are made from minerals. Cars, buses, trains, aeroplanes are manufactured from minerals and run on power resources derived from the earth. Even the food that we eat contains minerals. In all stages of development, human beings have used minerals for their livelihood, decoration, festivities, religious and ceremonial rites.
(i) Where do we get metals?
Ans. From daily life
(ii) Write two uses of minerals from your day to day life.
Ans. Student will give usage from their day to day life
(iii) How minerals affected the different stages of development of human being?
Ans. Decoration, festivities and religions ceremonies
(iv) Write two energy resources that we get from the earth.
Ans. Coal, Petrolium etc.
