The rock from which aluminium can be obtained is the ........ of aluminium.

Crude oil is extracted from the earth's interior by a process called.......................

Haematite is an ore of iron with the highest iron content

Which of the following is NOT true about aluminium.

Identify the mineral which is used in producing nuclear power.

Choose a mineral which is non-metallic.

Choose those metals which are usually used in making electric wires

Tick alloys from the given list.

What is the name given to those mines which are very close to the earth's surface?