How do the animals in an ecosystem mainly acquire the sun’s energy?

a)they absorb energy through their skins.
b)they obtain energy when they drink water.
c)they obtain energy trapped and stored by plants.
d)they can convert the sun’s energy into chemical energy

And give a detailed description! scientist observes the boundary between two tectonic plates for a decade and finds that no new volcanoes have formed over the course of her investigation. does this result support the theory of plate tectonics? why or why not?