Minerals

Which of these is a ore of aluminium ?

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This mineral is good conducter of heat and electricity .

• Aluminium

• Steel

• Copper

• Coal

Which of these is not the characterstics of a mineral ?

• Natural occurring

• Solid

• Crystal structure

• Organic

Which of these is a not a type of coal ?

• Bituminious

• Lignite

• Magnetite

• Anthracite

Which country is the largest producer of silver ?

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• 
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Petroleum and coal is known as _____.

• Fuel

• Oil

• Water

• Mineral fuel

Reddish-yellow precious stone is known as _____

• Gold

• Silver

• Bauxite

• Coal

Open pit is also known as _____

• Shaft mining

• Quarrying

• Digging

• Prough

Limestone is found where ?

• Rocks

• Igenous rock

• Sedimentry rock

• Metamorpic rock

Which of the following country is the largest producer of Urnium

• Afganistan

• Mexico

• America

• Kazakhstan