Rocks and the Rock Cycle: Why is the Study of Rocks Important

What is a rock primarily composed of?

• Liquid magma

• A single element

• Only organic materials

• A solid aggregate of one or more minerals

Which process involves magma reaching the Earth's surface and forming igneous rock?

• Sedimentation

• Erosion

• Extrusion

• Intrusion

What type of rock is formed when sediments accumulate and press together over time?

• Volcanic rock

• Metamorphic rock

• Sedimentary rock

• Igneous rock

How does metamorphic rock form?

• Through cooling of lava

• By melting and solidifying magma

• By accumulation of sediments

• Under heat and pressure from buried sedimentary rock

Why are rocks important in our daily lives?

• They have no significant use

• They provide essential minerals and metals

• They are only found in remote areas

• They are only used for decoration