Q: Where does evidence that magnetic reversals occur come from?


Read this paragraph and choose the correct option from the provided answers:

Scientists don’t know for certain why magnetic reversals occur, but there is hard evidence that they have for hundreds of millions of years. The evidence comes from rocks on the ocean floor. Look at Figure below . They show the same ridge on the ocean floor during different periods of time.

 Choices:

- snow

- Volcanoes

- air

- rocks on ocean floor


A:
rocks on ocean floor