1. Minerals are non-renewable natural resources found in the earth's crust.
- When the magma moves out from earth's crust, it cools down and transformed into crystals. Minerals like basalt, granite are formed this way.
- Some minerals like gypsum are the solid crystals that are left over after the process of evaporation. These are the sedimentary rocks.
- Minerals like diamond are formed from one form to another because of the large change in pressure and temperature. These are known as metamorphic rocks.
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