6. About half of the total energy the sun gives off is in the form of what
type of non-ionizing radiation?
a. Microwaves b. Ultraviolet
c. infrared
d. Visible light
7. Overexposure of microwave radiation can cause_11
a. Asthma
c. brain damage
b. No damaging effects d. cataracts
8. The narrow beam of light concentrates the effects on the retina causing
blind spot. This is an effects caused by
a. Lasers
c. alpha radiation
b. Beta radiation d. ultraviolet
9. Exposure to ionizing radiation can cause cancer.
a. True
b. False​