Civilisation is making humanity less intelligent

Question 1:

1. True. Humanity may have reached its intellectual and emotional peak as early as 4.000  B.C.
2. True. Ancestors ... who relied on their wits to build shelters and hunt pray.
3. False. The selection process ... is no longer in force.
4. True. Harmful mutations in our genes which reduce our “higher thinking” ability.

Question 2:

1. Mutation; Natural selection.
2. Survive: build shelter, hunt prey.

Question 3:

1. Peak
2. Evolved
3. Weeded out

Question 4:

1. It is claimed that civilisation is making humanity less intelligent.
2. If humans had to fight to survive, they would be cleverer.
3. Our prehistoric ancestors, who lived in Africa many years ago, had to hunt pray.