Not bad. The basic structure is there, but it really needs more. 25/40
Wegener -> Biological, Climatological, Geographical, Continental Fit.
-> NO MECHANISM, WEGENER FAILED TO EXPLAIN
->Come 1948-1950s, undefloor sea mapping.
->Age of crust/paleomagnetism either side of Mid Atlantic Ridge.
->PROBLEM WITH THIS, AS THE EARTH ISN'T GROWING IN SIZE
->Discovery of marianas trench, crust is being subducted.
Theory now in place.
Volcanoes > Ring of Fire (you did this good), lots around there. Here you should get in a strong paragraph about hot spots. They don't occur at boundaries HOWEVER we know that we can still apply plate tectonic theory because they have trails. Line of islands, suggesting that either the hotspot is moving, or the plates are moving. (
)
Earquakes > Good.
For top marks you need to talk about landforms at different boundaries, island arcs, fold mountains (Andes is a great one to do), Himalayas. We're talking about everything here.
Convergent->Oceanic/Oceanic, Oceanic/Continental, Continental/Continental, one landform for each.
Divergent-> MAR, Iceland perhaps?
Once you have done this you can bang out a paragraph about volcanoes/earthquakes. Yes they do, but look at all the other glorious pieces of information.
Hope that helps you.