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What evidence did Wegener find that backed up his hypothesis?

Why was Wegener’s theory rejected at first?

How fast are some sea floors spreading each year?

Briefly explain the changes you see in the magnetic orientation of sea floor rocks

What causes tectonic plates to drift?

Where do most earthquakes and volcanoes occur?

How are the Himalayas being formed?

What do earthquakes produce?

Name the two types of seismic waves cause by earthquakes state what type of wave it is

What type of seismic waves can’t pass through liquids?