I think new ideas individuals contribute to changes in language....
Answer:
<em>C. the nation, and since then,</em>
Exclamation: If you're joining two sentences together you need a comma to do so. By placing a comma after "nation" and "then" you are making a run-on sentence.
Answer:
The hardest question ever asked is "what is truth"
Explanation:
Philosophers have struggled with this question since the very beginning of it all, maybe because it’s the hardest question ever asked.
Answer:
D) delete it, because it distracts from the writer’s purpose of emphasizing human safety concerns by using language that focuses blame on human visitors to the park
(I got this question correct)