Earth's size and composition led to volcanic activity, which, in turn, had a major impact on earth's

Climate. When a volcano erupts it puts debris in the air which cools the earth.

Or you could say outcome. we have evidence that there was, at one time, a massive volcanic eruption that covered the whole earth killing everything in the process. Than life began to redevelop. 

Football was the fourth deadliest sport with a fatality rate of .81 per 100,000 participants. cheerleading, which has been shown to be the most dangerous activity based on injury data, was not included in the study because it was not classified as a sport.this is my answer because it didn’t give me any sports