What can a. person do to limit exposure to X-rays? A: wear sunblock

B: avoid cigarette smoke

C: wear a protective vest

D: avoid chemicals

well, since there is no answer choices, i will give an answer on how it works : )

the two objects are placed together. energy will always be transferred from the hotter object to the cooler object until they are equal. hope this is close to one of the answer choices : )

dna is a set of a gene held together by a chemical bond