Answer:
A. the speaker can count on the audience to make the connection.
Explanation:
It is answer 4 because the other three are not related to space and even though there are volcanoes on other planet, that question is not as relevant as the other last two.
Answer:
an example of a student who is not able to get to a public library
a detail that includes teacher support for a school library
Explanation:
The main idea is that humanoid robots do things for the scientists that the never could.
Answer:
struggle, or death since they're definitions are also rather grim and give people anxiety.