Answer:
Independent: electronics in room
Dependent: hours of sleep
Control: school nights, night routine, lighting of room, the time the person decides to go to bed
Confounding: the person(?? not entirely sure on this one)
The answer is B. Fragile… Osteoporosis is a condition that makes bones more fragile. ( risk of breaking easy)
C. Most psychologists believe that prosocial behavior always contains an element of self sacrifice.
Parenting is hard sometimes but it is good to be rewarded for good behavior. that is how you train someone.
It can help you because then you can get any thing you need to do done, so your nutritional plan will be healthy for your body.
