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07. Minerals And Ores

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Answer in one line

Prepared by: learnloophq@gmail.com
Last edited 43 days ago by Learn LoopHQ.

Chapter: 07. Minerals And Ores

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Answer in one line

How can a mineral be recognized?
A mineral can be recognized from its colour, lustre (shine), hardness, and shape.
What is the main difference between metallic and non-metallic minerals in terms of appearance?
Metallic minerals have a shiny appearance, while non-metallic minerals have a dull appearance.
Name two countries well-endowed with mineral resources outside of Asia.
Two countries well-endowed with mineral resources outside of Asia are the USA and Australia.
Why is iron ore alloyed with other elements for industrial use?
Iron ore is alloyed with other elements to make it strong enough for industrial use, as raw iron is not sufficiently strong on its own.
What is the primary use of uranium?
The primary use of uranium is as fuel in nuclear power plants.
How does the lightness of aluminium contribute to its importance?
The lightness of aluminium is important because it makes it suitable for use in the aircraft industry, contributing to faster means of transport.
What is the main use of manganese in industries?
Manganese is mainly used in the production of steel to produce steel of varying hardness, and also in industries such as glass, chemicals, and batteries.
Why is gold considered a precious metal?
Gold is considered a precious metal because it is found in very limited quantities and provides economic security to a country, especially during economic crises.
What unique property makes silver an excellent choice for electrical applications?
Silver’s unique property as the best conductor of heat and electricity makes it an excellent choice for electrical applications.
Name two alloys that are produced using copper.
Two alloys produced using copper are brass and bronze.
What is the primary use of limestone in India?
In India, almost 94% of the total limestone produced is primarily used in the cement industry.
For what purpose is mica primarily used in electrical industries?
Mica is primarily used for insulation and heat resistance in the electrical industries.
From what are coal deposits formed?
Coal deposits are formed from the decayed remains of plants and trees that have been buried and transformed over millions of years.
Why is petroleum also referred to as ‘black gold’?
Petroleum is referred to as ‘black gold’ because of its wide range of uses and critical importance as a fuel and raw material for many products in today’s world.
What are the common properties of natural gas?
Natural gas is colourless, tasteless, and odourless.
How does surface mining affect the environment?
Surface mining destroys trees and other natural vegetation and can harm soil, plants, and animal habitats.
What are open cast mines also called?
Open cast mines are also called quarries.
Name two metallic minerals commonly extracted through underground mining.
Two metallic minerals commonly extracted through underground mining are gold and copper.
List two ways minerals simplify our daily lives.
Minerals simplify our daily lives by being used to make common household items like door knobs and utensils, and by forming the basis of machines and tools that make tasks easier.
Why is the conservation of coal, petroleum, and natural gas particularly urgent?
The conservation of coal, petroleum, and natural gas is particularly urgent because they are non-renewable resources that are being depleted rapidly and are not expected to last for more than 100 years.
What is the purpose of recycling materials like scrap metals in industries?
The purpose of recycling materials like scrap metals in industries is to reduce mineral consumption and lessen the environmental impact of new mining.
What was Dorabji Tata’s significant contribution to India’s industrial growth?
Dorabji Tata’s significant contribution was founding the Tata Iron and Steel Company (TISCO) in 1907, which was vital for producing high-quality steel for India’s industrial growth and infrastructure.
What is a flux used for in the smelting process?
A flux is added in the smelting process to clean and purify the metal by removing impurities as slag.
Where are igneous and metamorphic rocks in India rich in mineral resources?
The igneous and metamorphic rocks of central and the southern peninsular parts of India are rich in mineral resources.
What is the impact of petroleum use on the environment?
The use of petroleum is very damaging to the environment, primarily due to vehicles that use petrol being major polluters.
What does “exhaustible” mean in the context of mineral resources?
In the context of mineral resources, “exhaustible” means that these resources are limited and can be used up completely, as they take thousands of years to form and cannot be quickly replaced.
How does the price of minerals like bauxite and iron change as their ores become harder to find?
As ores for minerals like bauxite and iron become harder to find and extract, their prices rise very high.
Name one product made from refined petroleum apart from fuels.
One product made from refined petroleum apart from fuels is synthetic fibres.
What type of rocks are non-metallic minerals typically found in?
Non-metallic minerals are typically found in sedimentary rocks.
Which mineral acts as the best conductor of heat and electricity?
Silver acts as the best conductor of heat and electricity.
Mention a historical fact about India’s early use of iron.
Indians were one of the earliest manufacturers and users of iron in the world, with evidence of surgical instruments made from iron being used as early as the 4th century BCE.
Which country was the world’s largest producer of manganese in 2021?
South Africa was the world’s largest producer of manganese in 2021.
Which country was the largest producer of bauxite globally in 2021, and what is the name of its largest mine?
Australia was the largest producer of bauxite globally in 2021, and its largest mine is the Wcipa Mine.
Which country was the largest producer of gold in the world in 2021?
China was the largest producer of gold in the world in 2021.
Which country was the largest producer of silver in 2021?
Mexico was the largest producer of silver in 2021.
Which country produces nearly 25% of the world’s copper?
Chile produces nearly 25% of the world’s copper.
Which country was the largest producer of coal in the world in 2021?
China was the largest producer of coal in the world in 2021.
Which country was the largest producer of natural gas in the world in 2021?
The United States was the largest producer of natural gas in the world in 2021.
What percentage of global crude oil production is contributed by OPEC as of 2021?
About 37% of the total global share of crude oil production is contributed by OPEC as of 2021.
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