Julie is a psychologist and she is conducting research on the effect of talking on a hands-free cell phone while driving. based on this information we can say that julie is a(n)

cognitive psychologist.

Explanation:

Cognitive psychologist -

It refers to the mental health professional , who helps to understand the thoughts of the human being , is referred to as a cognitive psychologist .

The person tries to understand the problem and all the factors linked with the problem , and gives the best therapy , medication possible , so as to relax the patient .

Hence , from the scenario of the question ,

Julia is a cognitive psychologist.

c. taught scientists many new things about the earth, but not other planets.

explanation:

the first question's answer is a.