Which is an example that shows evidence of evolution? 1- Gravity
2- Fossils
3-Sea floor spreading

2

Explanation:

the fossils are the evidence of evolution

it also supports my hypothesis. if you rest first you can squeeze the clothespin more times. from the data i collected the average of the eight people concluded exercise makes your muscles more fatigued and less able to squeeze the clothespin compared to resting before squeezing.