I do believe it's the third one but I could be wrong
Answer:
Certain= I am absolutely certain that Tom is wrong.
Unique =Every boring hour in life is unique.
Possessive= The dog is mines.
Thank you
Make sure that you will give brainliest.
A process by which a person becomes protected against a disease through vaccination.
Example:include tetanus, diphtheria, mumps, measles, pertussis (whooping cough), meningitis, and polio
What it means is that he wouldn't have been able to get where he got if it hadn't been for the scientific achievements of his predecessors. If it hadn't been for these "giants" that enabled him to see so far, he wouldn't have been able to make all the discoveries that he did. For those coming after him, he was a giant that enabled them, and so laws and theories and scientific knowledge always increases based on the knowledge before it.