Answer:

Igneous rock

• Igneous rocks are formed when magma (or molten rocks) have cooled down and solidified.
• Igneous rocks are commonly found inside the Earth’s crust or mantle
• Igneous rocks can be an important source of minerals
• Examples of Igneous rocks include granite and basalt

Sedimentary rocks

• Sedimentary rocks are formed by the accumulation of other eroded substances
• Sedimentary rocks are usually found in water bodies (sea, oceans etc.).
• Sedimentary rocks, or their bedding structure, is mostly used in civil engineering; for the construction of housing, roads, tunnels, canals etc.
• Sedimentary rocks include shale, limestone and sandstone.

Metamorphic rock

• Metamorphic rocks are formed when rocks change their original shape and form due to intense heat or pressure.
• Metamorphic rocks are found on the Earth’s surface.
• Geologists study the geological properties of Metamorphic rocks, as their crystalline nature provides valuable information about the temperatures and pressures within the Earth’s crust.
• Common examples of Metamorphic rocks are marble, slate and quartzite.