Coast

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The learning activity has three parts:

Geology, Geomorphology and litoral dynamic[edit]

Earth, water planet[edit]

What share of Earth surface is covered by the sea?

Half.
Aproximately 70%.
Less than one tenth.


Lithosphere, hydrosphere and atmosphere[edit]

Left to right, how are they ordered?

Below the sea, above the stone, and at the top of the air.
The lithosphere surounding outside the hydrosphere, and both bellow the atmosphere.
Water, that is more heavy, below the air, and the ground below both.