Which environmental factor does behavior genetics research suggest plays an important role in shaping temperament generally?

Relationship with parents

Explanation:

The environmental factor which affects the behavior of the person is relationship of the child with their parents.

The temperament broadly refers to the difference in the behavior of the individual that is biologically based on the parents and is independent of the learning and values.

This is not dependent on the behavior and the teachings, it is dependent on the behavior which is inherited from the parents to the children.

9.9 years

a = p(1 + rt) . . account balance after time t at rate r starting with principal p

3000 = 2500(1 + 0.0202t) . . filling in the given numbers

1.2 = 1 + 0.0202t . . divide by 2500

0.2 = 0.0202t . . . subtract 1

0.2/0.0202 = t ≈ 9.901

it will take about 9.9 years for the account balance to reach $3000.

weathering is the answer.