Which best completes the sentence? if something can respond to a stimulus then it
a. is a living thing.
b. might be a living thing.
c. is not a living thing.

The answer is A
Because if something responds to a stimulus, it cannot be dead because that isn't logically possible and it can't be might because there is no possibility of it not being a live and only living things respond to stimulus and that is the only answer left that can and is correct.

Because the earth is not round ,but it may seem round when viewed from ,our planet but true some points earth is not round was an oblate spheroid -a square that it squashed as globe however is not even a perfect oblate spheroid.in fact isaac newton's first proposed that earth was not perfectly round but it was an oblate spheroid instead.that mean a square that is squashed as its poles and swollen at the