True or false? forces that cause plate motion exert stress on the rocks making up the plates. to relieve this stress, the rocks bend and sometimes snap, causing earthquakes. question 47 options: a) true b) false

answer; i believe that the correct answer is(d) nondisjunction during meiosis;

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