A bar of gold is melted into liquid. The liquid is then poured into a mold to make pieces of jewelry. is this process a chemical change or physical change

only b 

The answer is letter c

Many archeologists and anthropologists disagree with dr. thorne's view.  thorne strongly believes that what many calls "homo erectus"  was in fact  homo sapiens,  and that they migrated out of africa almost 2 million years ago and dispersed throughout europe and asia. that's way different  from what scientists have always believed about the evolution of the species.

Mitochondrian would be the correct answer