Question

What are the ingredients necessary for threshold 7?
Choose 1 answer:


A
Powerful brains and symbolic language


B
Increasingly dense human communities and knowledge about the environment


C
Complex chemical compounds (RNA and DNA)


D
New innovations such as the steam engine and automobile along with the burning of fossil fuels

Answer 1

I think its B because you need knowledge and need to be smart about what you're doing

Answer 2

but i could be wrong

Answer 3

Thank you !

Answer 4

yw

Answer 5

No your correct.