Minerals that are found deep inside the earth are dug out through deep holes. These holes are called _________.

The minerals that are hard, durable,shiny and can be melted are called _______ minerals.

The minerals that cannot be melted and are breakable when hit are called _________ minerals.

_________ gives energy when burned.

Which among the following is not a metallic mineral?

Which among the following is not a non-metallic mineral?

Which metal is used to make parts of aeroplane,ships and other vehicles?

___________ is used to make cement and fertilizers.

Which among the following states is not rich in minerals?

Petroleum is used for making many useful products such as tar, diesel and petrol.

The process through which we can find out the existing mineral base by new and highly developed methods.

The process in which the waste is reused for producing other things.

The method in which alternative resources are used to replace the minerals.

This is used in making electrical wires.