Answer:
education is presious,cool and kinda interesting though its full of challenges,pressure and let downs...
I would say that the sentence in this paragraph which does not belong is A. Sentence 1.
Nobody really cares if these scientists were on a vacation with their families or not. What is important is stated in the remaining sentences - the age of the tree and its discovery, and not whether or not these people were vacationing.
Answer: it is 2
Explanation: because it has the right grammer
I think it's C ;)) hope it's right.
Answer:
you need to give more detail then that so people know what your talking about
Explanation: