Extra Questions for Class 10th: Ch 5 Minerals and Energy Resources Geography

Extra Questions for Class 10th: Ch 5 Minerals and Energy Resources Social Studies (S.St) Important Questions Answer Included

Very Short Answer Questions (VSAQs): 

1. How do minerals occur in igneous and metamorphic rocks?


May occur in cracks, crevices, faults and joints.

2. How do minerals occur in sedimentary rocks?


In beds or layers.

3. Name some minerals formed in beds and layers.


Coal, and some forms of iron ore.

4. Which rock consists of single mineral only?



5. Why are there a wide range of colours, hardness, crystal forms, lustre and density found in minerals?


Due to physical and chemical conditions.

6. How does mining affect the health of miners?


The dust and the noxious fumes inhaled by the miners makes them vulnerable to pulmonary diseases.

7. What is hematite?


Hematite ore is the most important industrial iron ore in terms of the quantity used.

Short Answer Questions (SAQs):

1. How is mining activity hazardous? Explain.


The mining activity is injurious to the health of the miners and environment as: 
• The dust and noxious fumes inhaled by miners make them vulnerable to pulmonary diseases. 
• The risk of collapsing mine roofs. 
• Inundation and fires in coalmines are a constant threat to miners.

2. Name the non-metallic mineral which can split easily into thin sheets. Mention its uses.


Mica is the non-metallic mineral which can be split easily into thin sheets. Mica is used in: 
• Mica is used in electric and electronic industries due to its excellent di-electric strength, low power loss factor, insulating properties and resistance to high voltage. 
• Plastic industry also uses mica as an extender and filler.

3. What are ‘placer deposits’? Give examples of minerals found in such deposits.

• Certain minerals may occur as alluvial deposits in sands of valley floors and base of hills. These deposits are called ‘placer deposits’. 
• They generally contain minerals which are not corroded by water. 
• Gold, silver, tin and platinum are examples of some important minerals found in ‘placer deposits’. 

4. Name the mineral ore from which aluminium is extracted? Why is it gaining importance? Give its distribution in India.


• Aluminium is gaining importance because of its extreme lightness, good conductivity and great malleability. It combines the strength of metals such as Iron. 
• It is mainly found in Amarkantak Plateau, Maikal Hills and the plateau region of Bilaspur-Katni. Koraput district in Odisha has large deposits. Odisha is the largest bauxite producing state. Others are Gujarat, Maharashtra and Jharkhand.

Long Answer Questions (LAQs):

1. Highlight the importance of petroleum. Explain the occurrence of petroleum in India.


Importance of Petroleum: 
• Petroleum is the major energy source in India. 
• Provides fuel for heat and lighting. 
• Provides lubricant for machinery. 
• Provides raw material for a number of manufacturing industries. 
• Petroleum refineries act as nodal industry for synthetic, textile, fertilizer and chemical industries.
Its occurrence: 
• Most of the petroleum occurrences in India are associated with anticlines and fault traps. 
• In regions of folding, anticline or domes, it occurs where oil is trapped in the crest of the upfold 
• Petroleum is also found in fault traps between porous and non-porous rocks.

2. Explain the importance of conservation of minerals. Highlight any three measures to conserve them.
Why is conservation of mineral resources essential? Explain any three methods to conserve them.

Reasons for Conservation: 
• The strong dependence of industry and agriculture upon minerals. 
• The process of mineral formation is slow. 
• They are non-renewable. 
Methods to conserve: 
• Minerals should be used in a planned and sustainable manner. 
• Improved technology needs to be constantly evolved to allow use of low grade ore at low cost. 
• Recycling of metals using scrap metals. 
• Wastage in the mining and processing should be minimised.

High Order Thinking Skills (HOTS):

1. 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?


Twin planks/measures: 
• Promotion of energy conservation.
• Increased use of renewable energy sources. As concerned citizens we can do our bit by: 
• Using public transport systems instead of individual vehicles. 
• Switching off electricity when not in use. 
• Using power–saving devices. 
• Using non-conventional sources of energy.

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