Answer:
I would go for "Evidence that the climate has changed over the past 100 years."
Explanation:
I chose the answer i did because the climate change has changed the Earth in so many ways. It has started melting glaicers(sorry if i spelled that wrong...) and it might have been the reason that the dinosuars have gone extinct, which is a good thing because I wouldn't want to be eaten by a T-rex.
