Earth's Mantle Quiz

What is the composition of the mantle?

• Granite

• Peridotite

• Basalt

• Limestone

How do scientists know what the mantle is made of?

• By drilling into the mantle

• By studying seismic waves

• By analyzing meteorites

• By observing volcanic eruptions

What type of rock is mostly found in the mantle?

• Granite

• Peridotite

• Basalt

• Limestone

How is the lower mantle heated?

• By conduction from the core

• By radiation from the sun

• By volcanic activity

• By friction from tectonic plate movement

What is the process of heat transfer in the mantle called?

• Conduction

• Convection

• Radiation

• Evaporation

Where did researchers try to drill into the mantle in 1961?

• Atlantic Ocean

• Pacific Ocean

• Indian Ocean

• Arctic Ocean

How much of Earth is made up of the mantle?

• 10%

• 25%

• 50%

• 75%

What did researchers bring to the surface in 2016?

• Diamonds

• Kimberlite

• Peridotite

• Olivine

What happens at the Moho discontinuity?

• The mantle meets the core

• The crust meets the mantle

• The lithosphere meets the asthenosphere

• The oceanic crust meets the continental crust

What are extremophiles?

• Organisms that live in extreme temperatures

• Organisms that live in extreme pressure

• Organisms that live in extreme environments

• Organisms that live in extreme depths