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07. Minerals And Ores

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Chapter: 07. Minerals And Ores

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Minerals are natural substances that have _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ chemical compositions.

definite

Minerals are extracted from _ _ _ _ _ _ _ _ _ _ _ _ _ _ _.

ores

Minerals are obtained by a process called _ _ _ _ _ _ _ _ _ _ _ _ _ _ _.

mining

There are about _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ known types of minerals.

3,500

Minerals are _ _ _ _ _ _ _ _ _ _ _ _ _ _ _, meaning they can run out.

exhaustible

Metallic minerals are classified into ferrous and _ _ _ _ _ _ _ _ _ _ _ _ _ _ _.

non-ferrous

_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ minerals are found in sedimentary rocks.

Non-metallic

Non-metallic minerals can exist in _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ at room temperature.

all states

_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ is the most abundant type of iron ore.

Haematite

_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ is the best quality iron ore, also known as ‘black ore’.

Magnetite

Uranium is used as fuel in _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ power plants.

nuclear

_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ is the lightest metal and is used in the aircraft industry.

Aluminium (or Bauxite, as aluminium is extracted from it)

The word ‘manganese’ comes from the Latin word ‘_ _ _ _ _ _ _ _ _ _ _ _ _ _ _’ meaning magnet.

magnes

_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ is the best conductor of heat and electricity among metals.

Silver

_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ in Rajasthan is an important copper-producing centre in India.

Khetri

Steel Authority of India Limited (SAIL) is one of the largest _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ companies in India.

steel

Almost 94 per cent of the total limestone produced in India is used in the _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ industry.

cement

_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ is used in the glass-making and electrical industries for insulation.

Mica

Coal is a _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ rock that is formed from the decayed remains of plants and trees.

sedimentary

_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ coal has 90 per cent carbon content.

Anthracite

Petroleum is sometimes referred to as ‘_ _ _ _ _ _ _ _ _ _ _ _ _ _ _’ due to its wide use.

black gold

The OPEC was founded in 1960 by five major producers of petroleum: Iran, Iraq, Kuwait, Saudi Arabia and _ _ _ _ _ _ _ _ _ _ _ _ _ _ _.

Venezuela

The _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Basin in Andhra Pradesh is a new centre of oil production in India.

Krishna-Godavari

Natural gas deposits are generally found with _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ deposits.

petroleum

_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ is an eco-friendly automobile fuel that causes little pollution.

Compressed natural gas (CNG)

In _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ mining, the top layer of soil is removed, and large pits are dug.

surface (or open cast)

A _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ is a long, narrow passage dug vertically deep into the ground for underground mining.

shaft

Minerals play a crucial role in the _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ development of a country.

economic

Minerals are non-renewable resources and have taken _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ of years to form.

thousands

The formula of ‘reuse’, ‘recycle’ and ‘_ _ _ _ _ _ _ _ _ _ _ _ _ _ _’ helps conserve minerals.

reduce

Sustainable Development Goal 12 focuses on _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ consumption and production.

responsible

Dorabji Tata founded the _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Company in 1907.

Tata Iron and Steel

Smelting is the process used to get a metal from its natural _ _ _ _ _ _ _ _ _ _ _ _ _ _ _.

ore

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