Question

x-rays are primarily used to

transmit cellular phone signals

image people's bones and teeth

absorb harmful radiations of the sun

detect the location of objects that emit heat

Answer 1

Infra-red is used to detect objects that emit heat. Everything absorbs radiation from the sun, because it emits gamma rays but the radiation is reduced by the atmosphere. Cell phones use microwaves, which is not nearly as powerful as an xray. So b.

Answer 2

thanks

Answer 3

No problem. :D