The mass extinctions support the evolution theory because there is a mass dying out of lot of species, and after that there is a gradual development of other species that replace them.
Explanation:
The mass extinctions are events that cause a mass dying out of enormous amount of species, both flora and fauna. The reasons for a mass extinction can be numerous, varying from massive volcanic eruptions, space objects impacts, or sharp changes in the global climate. When the organisms don't have enough time or are not able to adapt to the newly created living conditions they die out. This opens up a big gap, which is later filled by the species that have survived.
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