Answer:
Dogs are clumsy and shed their hair everywhere is irrelevant.
Explanation: This is because it doesn't prove the point that dogs are better than cats and is a negative.
Answer:
"Look at this fossil I bought at the gift shop,"
Explanation:
"It," causes the sentence to become a run-on, and therefore isn't grammatically correct. However, if the sentence said, "Look at this fossil I bought at the gift shop," then it would have no need to be changed, as it is a full sentence in itself with no run-on.
Answer:
Users are allowed to post on walls, update their status, upload photos and videos, and comment on these posts by the platform.
Explanation: