ALL ABOUT RELIEF. Relief formation.jpgREFIEF FORMATION.

Gap-fill exercise (by Juan Luis Serrano Pedrosa).

Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button to get a clue. Note that you will lose points if you ask for hints or clues!

USE THESE WORDS.

plates
external
surface
internal
inside
water
sand
sediments
erode
earthquakes
RELIEF FORMATION.

The relief of the Earth’s crust is constantly changing. Relief changes because of internal and external factors.
factors.
terremoto.png
Earthquakes
The movements of tectonic in the Earth’s crust cause .
Volcanes.png
Volcanoes
These start the Earth’s mantle and material rises to the .

factors.
Viento.png
Wind
Particles of blow against rock and it.
Agua.png
Water
The action of forms valleys and takes to other areas.