The process of taking out minerals from rocks buried under the surface of the earth is named as

• mining

• sleeping

• digging

• none of these

What is the process in which minerals lying near the surface are dug?

• Drilling

• Reading

• Quarrying

• Shaft mining

Name the process in which deep wells are bored to take out petroleum and natural gas.

• Quarrying

• Drilling

• Shaft mining

• Open cast mining

Gold is an example of

• ferrous

• non-ferrous

• rock

• none of these

• ore

Which country has no known mineral deposit?

• America

• India

• Switzerland

• China

Which country has no known mineral deposit?

• America

• India

• Switzerland

• China

From which mineral is silicon obtained?

• Coal

• Bauxite

• Thorium

• Quartz

• Iron

Suggest ways to conserve minerals.

• Reducing waste in the process of mining

• Recycling of minerals

• Waste minerals

• Do nothing

Which one of the following are ways of saving energy at home?

• Switching off lights when not in use

• Keeping gas off when not in use

• Cooking food in an open pan on low flame

• Switching on lights during daytime

Petroleum is referred to as ‘black gold’ because

• it’s black in color

• it is yellow in color

• it is valuable

• it is used in making jewelry