Based on these two observations would you say that is still spends most of its lifecycle in interphase or in mitosis/cytokinesis? (the bottom question)

answer; ///the correct answer to the above question is (

instead of copying and pasting things off of tests or work done on computer which im sure you did, try and read over the question carefully

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