The heritability of intelligence among children of less-educated parents is relatively high because of the relatively large differences in their environmental settings. low because of the relatively small differences in their environmental settings. high because of the relatively small differences in their environmental settings. low because of the relatively large differences in their environmental settings.

The answer is: low because of the relatively large differences in their environmental settings.

The environment around  us influence the way we learn and views new information.

Within 20 - 30 years of gap between the parents and their children, the environment where they both grow up in would also be dramatically different.  it is very likely that the children in this situation will grow up with a more advanced technology and education system compared to the r parents, which will positively contribute to the development of their intelligence.

1) d

2)c

3)b

4) a

5)c

6) c

answer; decreased;