Because to grow crops and take care of civilization.
B. The computers in that lab need software.
The subject and verb are both plural in this case; in the other sentences, the subject and verb do not match.
A literary device which gives the reader an advance hint of what is to come later in the story.
He is using an emotional aspect to pursue his audience to take real action.
Mr. White doubts that the monkey's paw can really grant wishes.
