Respuesta :

The answer is Coral Reef Formation.  Charles Darwin developed a theory about Coral Reef Formation.  He contributed to marine biology through study of coral reef formation.  Darwin's theory states that coral reefs formed as the islands and surrounding areas of crust subsided has been supported by modern investigations. 

Answer:

The correct answer is "coral reef formation".

Explanation:

Darwin is known worldwide for his theory of evolution. But he also proposed a theory of how isolated coral reef rings were formed. He deduced that they originally grew around extinct volcanoes, which then sank under the sea, leaving the reef as an isolated circle corresponding to the opening it had.

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