Answer:
Gravity?
Explanation:
Or it could be a non contact force.
I believe the answer is respiration
Answer:
1. Skin Creams
Explanation:
An independent variable is the only variable that is changed while the rest is kept the same. In this setup, the doctor is using different creams on the same patient with the same skin condition so the independent variable is the skin cream and not the skin condition.
The first couple had two children: a healthy boy and girl.
5 people have the disorder(2 women and 3 men)
