Geologic evidence shows that Earth's tectonic plates can move thousands of kilometers across the earth's surface. these movement

igneous rocks are formed by solidification of cooled magma (molten rock), with or without crystallization, either below the surface as intrusive (plutonic) rocks or on the surface as extrusive (volcanic) rocks.  

the composition depends on the source magma. there are almost a thousand types of composition found till now.  

hope this

i think its both a and b

i'd have to say the answer is probable the second option "the geosphere interacting with the atmosphere"