The answer is B. ( They do not have depth )
Explanation: being back in time all the cave men had was ink so there would be no way they could have depth.
Hope this helped!!
Tetravalent
We have already seen an example of how a covalent bond can form between two hydrogen atoms producing molecular (H2) as opposed to the atomic form of hydrogen. ... As in all its compounds and its elemental forms, carbon is tetravalent, which means that it always forms four bonds.
you could watch life of pi it is a beautiful movie to me
also can i have brainiest please
