The most accurate way to describe the excerpt is, it is a dependent clause.
The<em> dependent clause</em> does not express a complete meaning of a sentence. it includes a subject and a verb. These clauses include adjective clauses, adverb clauses, and noun clauses.
In the above sentence, <em>"since our priority was to identify the origin of the alien’s signal."</em>
It contains adverbial clause.
An adverbial clause begins with the subordinating conjunction such as if, although, because and so forth.
In it, <em>'since'</em> is subordinating conjunction and <em>'our priority'</em> is an adverbial clause.
Answer:
In the bigger picture, no.
Explanation:
While plastic is very non bio-degradable, replacing plastic bags with paper bags would have a very small impact on the environment if any at all, depending on what paper would be used.
Fredrick Douglas was against slavery and wanted to try to end it, or at least give most slave freedom, by crossing them over the Mason-Dixon line. Captain Canot on the other hand was all for slavery, beliving that there was nothing wrong with enslaving other humans just because they have darker skin. Both use amazing evidence, and present their information very straight-forward.