What are the challenges of studying ancient humans early forms of cave paintings and carvings?

Because the cave art found in Indonesia shared similarities with the cave art in western Europenamely, that early people seemed to have a fascination animals, and had a propensity for painting abstractions of those animals in cavesmany scientists now believe that the impressive works are evidence of the way the human

Explanation:

1. state-issued photo ids. provide them for free for those who can't afford them.

2. the system we have seems to be working nearly perfectly. seems like about 31 cases per billion votes cast

3. the national policy for hiring new employees which requires proof of eligibility to work. there are something like 20 types of identification which can be used for this.

answer; group behavior;