A15-year-old boy comes to the emergency department accompanied by his parents. the boy reports an abrupt onset of sudden pain on the right side of his scrotum. when asked to rate his pain on a scale of 1 to 10, whith 10 being the most severe, the boy states

the correct answer: the index of refraction of the second medium is lower i tried this persons answer and it was wrong this person is lying

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