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)
We cannot see the rest of the question
you can report it, not encourage the bully and always support the victim
Answer:
Lung Cancer, Tuberculosis, Pneumonia, Chronic Obstructive Pulmonary Disease
Explanation:
They all effect the lungs
