What does the term conversion nation mean in regards to energy​

amber has allowed scientists to study dna that has been preserved over millions of years.

i think that is new experiments yield untrustworthy data and should be carefully considered, because you don't know what will happen with the experiments.

c should be the answer

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