Roca ígnea

The video explains the formation and types of igneous rocks, which are the most common rocks on Earth. It describes how extrusive igneous rocks form when lava cools on the surface, while intrusive igneous rocks form beneath the Earth's surface.

What is the process called when magma or lava becomes solid?

• Precipitation

• Solidification

• Condensation

• Evaporation

Which type of rock is most commonly found on Earth?

• Limestone

• Igneous

• Metamorphic

• Sedimentary

What fraction of Earth's crust is made up of sedimentary and metamorphic rocks?

• One-third

• One-half

• One-tenth

• One-twentieth

Where do extrusive igneous rocks form?

• In the atmosphere

• Inside volcanoes

• On the surface

• Beneath the ocean

Intrusive igneous rocks are formed by cooling and solidifying in which location?

• In the ocean

• In the atmosphere

• On the Earth's surface

• Beneath the Earth's surface