Give three instantaneous scale (time) examples of earth's systems, two long-term scale (time) examples of earth's systems, and three examples of cycles of earth's systems. why are volcanoes and volcanic activity a good example of system interactions? (site 1)

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.