Ascientist wanted to conduct an experiment with special equipment that is very sensitive to sound. a place where the equipment would not be affected by sound waves is a) deep under water. b) high in the air. c) in a solid piece of granite. d) in outer space.

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

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.