43. The most harmful and are almost completely absorbed by our atmosphere.
a. AV-C Rays
b. UV-B Rays
c. UV-C Rays
d. Ozone Layer
44. It is used as investigative tool of crime scene to help identify body fluids like blood and bile.
a. sun
b. UV radiation
C. DNA
d. UV-B rays
45. The smallest wave lengths and the most energy of any wave in electromagnetic spectrum.
a. gamma rays
b. x-rays
C. energy
d. sun​