Answer:
A
Explanation:
estuary is the tidal mouth of a large river, where the tide meets the stream.
Few people live in the Australian outback, because the outback is a very small part of our world.
A map shows all the world and a map projection shows a curved flat surface.
Eutrophication is excessive richness of nutrients in a lake or other body of water, frequently due to runoff from the land, which causes a dense growth of plant life and death of animal life from lack of oxygen.
Hope this helps!
I believe that the best answer among the choices provided by the question is the second choice , evaporation
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