I think it is photographs ...
I would say that there would be no life living on earth
Answer: b. homophones
Explanation: These words sound the same, but do not have the same definitions (therefore, are not synonyms). Furthermore, these words don't have contradictory definitions (or opposite ones). Therefore, they are not antonyms.
1)unperceived
2)old mutt
3)territory
4)path
5)mysterious
6)harsh
7)a teenager deeply interested in engineering, exploring, and creating things
8)he believes that gaming and technology can help grow the brain to expand one's learning
9)people to reject computers
10)cocky