How many layers does the Earth have? *
10 puntos
14
5
8
4
Otro:


What causes the rock cycle? *

The rock cycle is caused by water.
The rock cycle is caused by plants.
The rock cycle is caused by rocks.

Which layer surrounds the inner core? *

The outer core
The air
The water


Which part of the crust is the thickest? *

The soil.
It's under the land.
The plate tectonics.