Like plants , diatoms contains chlorophyll and glucose from

The correct answer would be b

Carbon-14 has a half-life of 5,730 years and most igneous rock is older than that.

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.