Answer:
Science fiction assumes that the universe bursts with life, but scientists aren't so sure.
Explanation:
According to the given paragraph about the low probability of finding life in other planets or galaxies, the most effective topic sentence for the paragraph is Science fiction assumes that the universe bursts with life, but scientists aren't so sure.
This is because, a topic sentence is a brief statement of the main point of an essay.
B- learning how to make fire was a long struggle for humans
Answer:
I think it is C I don't see the need for using the punctuation marks
I believe the author was seven years old ignore what I asked sorry about that.
Answer:
This is a dependent clause.
Explanation:
A dependent clause is a group of words that contains a subject and verb but does not express a complete thought. A dependent clause cannot be a sentence.
"In his first year in the White House" does not express a complete thought, making it a dependent clause.
