Class 7 Hamara Rajasthan Chapter 2 Question Answer in English Minerals and Energy Resources

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Class 7 Our Rajasthan Chapter 2 Question Answer Minerals and Energy Resources

Our Rajasthan Class 7 Chapter 2 Minerals and Energy Resources Question Answer

 I. Write the correct option for the following questions in given bracket-

Question 1.
Identify the metallic mineral group:
(a) lead, copper, iron
(b) lead, marble, gypsum
(c) copper, manganese, limestone
(d) granite, copper, mica
Answer:
(a) lead, copper, iron

Question 2.
In which district is Chanderiya Lead Zinc Smelter Plant situated?
(a) Chittorgarh
(b) Jaipur
(c) Jaisalmer
(d) Nagaur
Answer:
(a) Chittorgarh

Question 3.
Which is not a conventional source of energy?
(a) Coal
(b) Mineral oil
(c) Natural gas
(d) Wind energy
Answer:
(d) Wind energy.

II. Fill in the blanks-

1. …………………….. type of coal is the best.
Answer:
Anthracite,

2. Conventional sources of energy are …………………… .
Answer:
coal, mineral oil and natural gas.

III. Match column ‘A’ with column ‘B’

Column ‘A’	Column ‘B’
1. Solar park	(a) Pachpadra (Balotra)
2. Oil refinery	(b) Bhadla (Phalodi)
3. Nuclear power plant	(c) Beban (Udaipur)
4. Zinc smelting plant	(d) Rawatbhata (Chittorgarh)

Answer:

Column ‘A’	Column ‘B’
1. Solar park	(b) Bhadla (Phalodi)
2. Oil refinery	(a) Pachpadra (Balotra)
3. Nuclear power plant	(d) Rawatbhata (Chittorgarh)
4. Zinc smelting plant	(c) Beban (Udaipur)

Short Answer Type Questions-

Question 1.
Write a short note on wind energy among the non-conventional sources of energy.
Answer:
The physical location and climate of Rajasthan is most suitable for wind energy. At present, wind-based power houses are established in Jaisalmer, Pratapgarh, Jodhpur, Banner and Balotra districts.

Question 2.
Name two non-metallic minerals and write their uses.
Answer:

1. Limestone-It is used in making cement.
2. Gypsum-It is used in making Plaster of Paris.

V. Short Answer Type Questions-

Question 1.
What are minerals? Explain their uses in daily life.
Answer:
Mineral: Minerals are physical substance of fixed chemical composition, extracted through mining. Example—Lead, zinc, limestone, mica, etc.

Use of minerals in daily life: A number of items of daily use are made from the products obtained from minerals, such as beauty products, jewellery, machinery, Plaster of Paris, chemical fertiliser, electric wire equipment, etc.

Question 2.
How are the geographical conditions of Rajasthan favourable for development in the Solar energy sector?
Answer:
Solar energy: Rajasthan is a hot region so maximum use of solar power is possible. The possibilities of producing solar energy increase due to this reason. Solar energy is used in power plants, street lights, solar cooker, water heaters, etc. The state government gives financial aid on roof power plants and household equipment that works on solar energy. India’s largest solar park is established in Bhadla, Jodhpur.

Minerals and Energy Resources Class 7 Question Answer

Multiple Choice Questions-

Question 1.
Which of the following is an example of an energy mineral?
(a) Coal
(b) Mineral oil
(c) Natural gas
(d) All of these
Answer:
(d) All of these

Question 2.
Identify the metallic mineral from the following:
(a) Limestone
(b) Iron ore
(c) Marble
(d) Coal
Answer:
(b) Iron ore

Question 3.
Which of the following is non-metallic mineral?
(a) Gypsum
(b) Silver
(c) Manganese
(d) Copper
Answer:
(a) Gypsum

Question 4.
Which of the following is not included in non-conventional source of energy?
(a) Nuclear power
(b) Coal
(c) Wind energy
(d) Biogas
Answer:
(b) Coal

Question 5.
Which type of coal is found in Rajasthan?
(a) Anthracite
(b) Lignite
(c) Bituminous
(d) Peat
Answer:
(b) Lignite

Question 6.
Rajasthan’s second Nuclear Power Project has been inaugurated in-
(a) Jaisalmer
(b) Chittorgarh
(c) Udaipur
(d) Banswara
Answer:
(d) Banswara

Question 7.
India’s largest solar park is established in-
(a) Jaipur
(b) Phalodi
(c) Ajmer
(d) Udaipur
Answer:
(b) Phalodi

Question 8.
Which district is Rawatbhata Nuclear Power Plant located in?
(a) Ajmer
(b) Bikaner
(c) Chittorgarh
(d) Kota
Answer:
(c) Chittorgarh

Question 9.
Where is the lignite-based thermal power plant located?
(a) Suratgarh (Sri Ganganagar)
(b) Giral (Barmer)
(c) Chhabra (Baran)
(d) Kalisindh (Jhalawar)
Answer:
(b) Giral (Barmer)

Question 10.
Natural gas-based power house is-
(a) Baghewala (Bikaner)
(b) Mangala (Barmer)
(c) Sadhewala (Jaisalmer)
(d) Ramgarh (Jaisalmer)
Answer:
(d) Ramgarh (Jaisalmer)

Fill in the blanks-

1. ……………………….. Nuclear Power Plant is the second nuclear power plant of the country.
Answer:
Rawatbhata

2. Most of India’s is …………………… produced in Rajasthan.
Answer:
lead-zinc

3. Coal is of ………………….. types.
Answer:
four

4. Minerals are ……………………… substances of fixed chemical substance.
Answer:
physical

5. Rajasthan’s first super thermal power station is situated in ………………….. .
Answer:
Suratgarh

6. The …………….. and …………………. of Rajasthan is most suitable for wind energy.
Answer:
physical location, climate.

Match the Column-

Column ‘A’	Column ‘B’
1. Bhadla Solar Park	(a) Natural gas
2. Conventional Sources of Energy	(b) Phalodi
3. Zinc smelter plant	(c) Chanderiya (Chittorgarh)
4. Lead-zinc smelter plant	(d) Debari (Udaipur)

Answer:

Column ‘A’	Column ‘B’
1. Bhadla Solar Park	(b) Phalodi
2. Conventional Sources of Energy	(a) Natural gas
3. Zinc smelter plant	(d) Debari (Udaipur)
4. Lead-zinc smelter plant	(c) Chanderiya (Chittorgarh)

Very Short Answer Type Questions-

Question 1.
What is mineral?
Answer:
Minerals are physical substances with a definite chemical composition.

Question 2.
Why does coal, mineral oil and natural gas are called conventional energy resources?
Answer:
Coal, mineral oil and natural gas are conventional sources of energy because they get exhausted on single usage.

Question 3.
What do you mean by non- conventional energy resources?
Answer:
Atomic energy, wind energy, solar energy, biogas energy, etc., are non- conventional sources of energy. They are reusable.

Question 4.
Where is solar energy used?
Answer:
Solar energy is used in power plants, street lights, solar cooker, water heater etc.

Question 5.
Define metallic minerals.
Answer:
The minerals which contains metals are called metallic minerals.

Question 6.
What are non-metallic minerals?
Answer:
The minerals which do not contain metals are called non-metallic minerals.

Question 7.
Which minerals does Rajasthan hold monopoly?
Answer:
Rajasthan holds monopoly in minerals like wollastonite, jasper, lead-zinc, etc.

Question 8.
Which region of Rajasthan is most significant for production and availability of minerals?
Answer:
The Aravali mountain range.

Question 9.
Which product is obtained as a by-product of lead-zinc?
Answer:
Silver and cadmium.

Question 10.
In which region of Rajasthan lignite coal is found?
Answer:
Palana, Barsingsar, Kapurdi, Merta Road and Jaisalmer.

Question 11.
Where are the coal-based thermal power plants located in Rajasthan?
Answer:
Kota, Kalisindh, Baran and Chhabra.

Question 12.
What is meant by Energy Minerals? Give example.
Answer:
The minerals from which energy is obtained are called energy minerals, such as coal, petroleum, natural gas, etc.

Short Answer Type Questions-I-

Question 1.
How can mineral and energy resources be protected?
Answer:

1. We should stop the infinite exploitation of minerals.
2. We should be careful while using energy and prevent its wastage.

Question 2.
Write the names of any five metallic and non-metallic minerals.
Answer:
Five Metallic Minerals-

1. Iron Ore,
2. Manganese,
3. Lead-Zinc,
4. Silver,
5. Copper.

Five Non-Metallic Minerals-

1. Limestone,
2. Gypsum,
3. Marble,
4. Mica,
5. Rock Phosphate.

Question 3.
Describe the location of mineral oil in Rajasthan.
Answer:
Mineral oil in Rajasthan is found in the Jaisalmer Basin, Barmer-Sanchore Basin, and Bikaner-Nagaur Basin. Major oil fields in Rajasthan include Sadhewala (Jaisalmer), Baghewala (Bikaner), and Aishwarya and Mangala (Banner).

Question 4.
Give a brief description of the location of natural gas in Rajasthan.
Answer:
Reserves of natural gas are found in areas like Ghotaru, Kamlital, Tanot, Manhera Tibba, Ramgarh, Raageshwari, and Dandewala. Additionally, natural gas- based power plants are located in Ramgarh (Jaisalmer), Anta (Baran) and Dhaulpur.

Short Answer Type Questions-II-

Question 1.
How many types of minerals are there? Explain.
Answer:
There are three types of minerals. As-

1. Metallic Minerals-Minerals that contain metal content are called metallic minerals. These minerals are hard and shiny. They can be melted to obtain new products.
2. Non-Metallic Minerals-Minerals that do not contain metal content are called non-metallic minerals. These are used in their original form as they are found in nature.
3. Energy Minerals-Minerals from which energy is obtained are called energy minerals. Examples include coal, petroleum, natural gas, etc.

Question 2.
What is the position of Rajasthan in the field of minerals? Explain.
Answer:
Various types of minerals are found in Rajasthan.

1. Rajasthan has a monopoly in minerals like Wollastonite, Jasper, and Lead-Zinc.
2. The state is also a leader in the production of Marble, Granite, Kota Stone, Sandstone, Silver, Gypsum, Rock Phosphate, Caldte, Ball day, Soap stone and Copper.
3. The Aravalli Mountain Range is the most significant region for mineral availability and production.
4. Most of the country’s Lead-Zinc is produced in Rajasthan; Silver and Cadmium are obtained as its by-products.
5. A Zinc Smelter Plant is established in Debari (Udaipur), and a Lead-Zinc Smelter Plant is established in Chanderiya (Chittorgarh).

Q. 3. Show any five major minerals, their related districts, and their uses through a table.
Answer:

Name of Mineral	Mineral Associated Districts	Used in
1. Lead-zinc	Salumbar (Jawar), Bhilwara, Rajsamand	Acid battery, safety devices, utensils, beauty products, colour industry
2. Copper	Jhunjhunu (Khetri), Alwar, Sikar	Electric wire equipment, utensils
3. Iron ore	Jaipur, Sikar, Jhunjhunu	Machinery, railway tracks, building construction material
4. Silver	Salumbar, Rajsamand	Jewellery, coins, decorative art-efacts
5. Gypsum	Bikaner, Nagaur, Sri Ganganagar, Banner, Jaisalmer, Balotra	Chemical fertilizers, Plaster of Paris, cement

Essay Type Questions-

Question 1.
Describe the major conve¬ntional sources of energy.
Answer:
Conventional Sources of Energy
1. Coal-Coal is of four types: Anthracite, Bituminous, Lignite, and Peat. Anthracite is the best quality coal. In Rajasthan, Lignite coal is found in Palana, Barsingsar (Bikaner), Kapurdi (Barmer), Merta Road (Nagaur), and Jaisalmer. A lignite-based thermal power plant is established in the Giral region of Barmer.

2. Mineral Oil and Natural Gas- Mineral oil is found in the Jaisalmer Basin, Barmer-Sanchore Basin, and Bikaner- Nagaur Basin. Major oil fields include Sadhewala (Jaisalmer), Baghewala (Bikaner), and Aishwarya and Mangala (Barmer). Natural gas reserves are found in Ghotaru, Kamlital, Tanot, Manhera Tibba, Ramgarh, Rajeshwari, and Dandewala. Natural gas-based power plants are located in Ramgarh (Jaisalmer), Anta (Baran), and Dhaulpur.

3. Hydroelectricity – hydroelectricity  has a major place in energy resources. In Rajasthan, hydroelectricity power is generated from Gandhi Sagar and Rana Pratap Sagar under the Chambal River Valley Project at Gandhi Sagar and Rana Pratap Sagar. Hydroelectricity is generated from the Mahi Bajaj Sagar Project in Banswara district, and some multi-purpose projects like Bhakra Nangal and Beas.

Question 2.
Describe the major non- conventional sources of energy.
Answer:
Non-Conventional Sources of Energy
1. Nuclear Energy-The nuclear power plant located at Rawatbhata in the Chittorgarh district of Rajasthan is the country’s second nuclear power plant. The foundation for Rajasthan’s second nuclear power project has been inaugurated in Banswara district.

2. Wind Energy-Rajasthan’s physical location and climate are most suitable for wind energy. Currently, wind-based power houses are established in Jaisalmer, Pratapgarh, Jodhpur, Barmer, and Balotra districts.

3. Biogas-Raising livestock is a major occupation in Rajasthan, so biogas plants have been set up here. Biogas plants have been established in many districts, including Udaipur and Jaipur. The Rajasthan government also provides grants for biogas plants.

4. Solar Energy-Rajasthan is a hot region, therefore the maximum use of solar energy possible. The country’s largest solar park has been established at Bhadla in Phalodi district. The state government gives financial aid on roof solar power plant and household equipment that work on solar energy.