What geoscience factors affected the evolution of corals? 1

Is there any species that went extinct in recent years due to natural causes (not caused by human interaction). if so, what caused it?

What is the problem in this article? what solution does the article propose?

Match the pollutants. 1. a chlorofluorocarbon smoke 2. a biodegradable organophosphate insecticide freon 3. particle pollution paint 4. hazardous waste monoxide 5. carbon is completely burned malathion 6. carbon is incompletely burned dioxide