Answer: Air and water <em><u>are</u></em> necessary for life.
Explanation:
Air and water are a plural subject because a subject made up of nouns joined by 'and' makes a compound subject, unless that subject's intended sense is singular, therefore the verb must be conjugated in the plural: "They are".
<h2><em>Eiztari</em></h2>
Answer:
up, had, did, been, time, I don't know this one, who, have
The author, Isaac Asimov, is trying to teach us through this story
The Three Laws of Robotics, which were obviously devised by him so that men of the future will be able to have humanlike feelings. As examples of this author's intention it is worth to mention what the robot expresses through the story:
"One would like to have more expression,"
"One has thoughts and feelings that presently do not show."
Answerd.undeniable
Explanation:she had the evidence of eating the cake right on her face