Read the sentence from the introduction [paragraphs 1-2]. It keeps us warm, it gives us oxygen to breathe, it protects us by absorbing harmful radiation from the sun, and it's also where our weather happens.

Which of the following words, if it replaced the word "harmful" in the sentence above, would CHANGE the meaning of the sentence?

A
useless
B
unsafe
C
damaging
D
destructive

the real answer is b. scintillation counter

bacteria could be both, harmful and to us. harmful bacteria could make us sick and probably even by getting the chances of getting a disease, but good bacteria fight it off with your immune system. there is always bacteria everywhere we go. we need to make sure to wash our hands after using the restroom, before eating, after eating, after petting an animal too. so you see, bacteria is everywhere and is harmful or . i hope this . : ) : ) : )

what are the options

explanation: