the melting of the polar ice caps the shifting of biomes as climates change the prevalence of granite on all the continents the presence of volcanoes around the Pacific rim
I gave my students this multiple choice question: Which of these is evidence for the theory of plate tectonics?

Only one answer is correct among these 4 choices:
- the melting of the polar ice caps
- the shifting of biomes as climates change
- the prevalence of granite on all the continents
- the presence of volcanoes around the Pacific rim

Could you tell me which one is correct?

the presence of volcanoes around the Pacific rim