The Earth´s Internal Dynamics

Selects a layer that is repeated in the two terrestrial models

• Crust

• Mantle

• Lithosphere

• Asthenosphere

The outer core is

• Solid

• Liquid

• Gaseosus

• Frozen

The lithosphere is characteristic of the

• Terrestrial chemical model

• Physical terrestrial model

• Terrestrial derived model

• Inverted terrestrial model

The core is mainly composed of

• Fe-Ni

• C-Al

• Fe-Pb

• Al-Pb

Concerning p-waves

• They can pass through all layers

• They only can pass through liquid layers

• They can pass through outer core and mantle

• Its movement is perpendicular to the motion

Concerning s-waves

• They can pass through all layers

• They only can pass through liquid layers

• They only can pass through solid layers

• Its displacement is horizontal with respect to the movement

The density of the Earth is highest in

• Continental crust

• Oceanic crust

• Mantle

• Core

The supercontinent that was created during the Triassic was called

• Laurasia

• Pangea

• Gondwana

• There was no supercontinent in the Triassic.

What period are we living in today?

• Holocene

• Hadean

• Cretaceous

• Permian

The extinction of the dinosaurs occurred around

• 87 million years

• 65 million years

• 120 million years

• 1 million year

• 36 million years