What are proven potential adverse effects of using cell phones?
A) headaches, brain cancer, and autoimmune disease
B) brain tumors, confusion, and diabetes
C) insomnia, Alzheimer's disease, and osteoarthritis
D) changes in brain activity, reaction times, and sleep patterns
E) reduced reaction times, Parkinson's disease, and anemia
Question 2
At what sound level do you start risking injury to your ears?
A) 5 decibels
B) 30 decibels
C) 50 decibels
D) 90 decibels
E) 120 decibels