Coast

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The learning activity has three parts:

[edit] Geology, Geomorphology and litoral dynamic

[edit] Earth, water planet

1. What share of Earth surphace is covered by the sea?

The half.
Aproximately the 70%.
Less than a tenth.

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[edit] Lithosphere, hydrosphere and atmosphere

1. Bottom-up, how are they ordered?

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

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