Part 5: Discuss- Your response must be at least 8 sentences long. You must use complete sentences. Research about the roles of nature versus nurture on human health. Share your opinion about how an individual’s genetic makeup interacts with one of the following topics: nutrition, smoking, drug use, or exercise to affect the quality and length of life. Back up your opinion with at least 2 facts from your research. Cite at least three sources to support your conclusions.

not sure if this what   you'r looking for would be percent composition

answer and explanation;

volcanic rocks are igneous rocks which form from lava, molten rock which has been thrust out of a volcano onto the surface of a rocky body such as an asteroid, planet, or dwarf planet.  

plutonic rocks are igneous rocks which form from subterranean chambers of molten rock or magma. plutonic rocks make up the base of continental crust as well as oceanic crust. their slow rate of formation causes them to be coarse grained since there is plenty of time for large crystals to form before the magma solidifies into rock.

the textural difference is that plutonic rocks are more coarse grained than volcanic rocks. plutonic rocks are coarse grained while volcanic are fine grained ; glassey or fragmental. since fine and coarse are adjectives the decision as to whether a rock is fine or coarse grained is generally made on the bases of whether or not the individual crystals can be seen in most if the rock.

some scientists like gregory adcock agree with thorne's theory of regional continuity.

others, like chris stringer and ian tattersall, believe thorne's results may be contaminated or misinterpreted.