What impact wouod losing coral reef ecosyatem have for human being?

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Pollution, overfishing, destructive fishing practices using dynamite or cyanide, collecting live corals for the aquarium market, mining coral for building materials, and a warming climate are some of the many ways that people damage reefs all around the world every day.
Hope it is helpful

This is what i did 45-5=4040÷4=10so there are 10 white marbles but am not sure is just a question that am not sure