2. What does Kelvin argue to Snow?
(a) A neutrino disruptor could create an explosion.
(b) Communication with the ocean will cause more hostile behavior.
(c) Submerging anything in the ocean will be interpretted as aggression.
(d) All their ideas will be ineffective.

3. What does Rheya believe she was created to do?
(a) study Kelvin's physical form
(b) study Kelvin's reactions
(c) torture Kelvin
(d) make Kelvin insane

4. Why does Rheya try to kill herself?
(a) She has talked with Snow.
(b) She has talked with Solaris in a dream.
(c) She has listened to Gibarian's tape.
(d) She has talked with Sartorius.

5. What does Sartorius ask Kelvin to think about during the electroencephalogram?
(a) mankind's rich scientific history
(b) his innermost conflicts
(c) images from his childhood
(d) a wish to make the visitors disappear

6. What does Kelvin tell Rheya about the success of the upcoming experiment?
(a) He says it's almost certain to work.
(b) He says he's worried it might work.
(c) He says it is futile and will not work.
(d) He says he's sabotaged it so that it won't work.

7. What does Kelvin try to convince Rheya of, after she tries to kill herself?
(a) that he knows how to kill her
(b) that he doesn't love her anymore
(c) that she is the same as the real Rheya
(d) that he wants her to stay with him

8. Why does Kelvin make his argument?
(a) Kelvin secretly believes all the visitors have rights.
(b) Kelvin secretly does not want Rheya destroyed.
(c) Kelvin does not want to endanger himself, Snow, or Sartorius.
(d) Kelvin secretly has a plan to destroy only Rheya.

9. When does Snow say that the visitors first appeared?
(a) after the scientists performed X-ray experiments
(b) after an explosion in Solaris's ocean depths
(c) after the scientists performed microwave experiments
(d) after an explosion near the surface of Solaris

10. What does Snow say is the result of Sartorius' experiment?
(a) death for the wrong one
(b) prolonged dying
(c) an unstable field
(d) a dangerous void

11. What odd action does Kelvin notice Snow is performing?
(a) standing only on one foot
(b) holding his hand deep inside his jacket
(c) holding his hand inside a slightly ajar door
(d) leaning carefully against a slightly ajar door

12. What do mimoids duplicate?
(a) nearby innanimate objects
(b) living creatures
(c) distant objects in space
(d) other Solarian forms

13. How long will it take to receive a reply from Earth?
(a) months
(b) hours
(c) days
(d) years

14. When does Snow say the experiment will be ready?
(a) in two or three days
(b) that day
(c) in a week
(d) in a month

15. What does Kelvin awake to hear in the middle of the night?
(a) a deep cracking sound
(b) a constant drip he cannot find
(c) sobbing from the walls
(d) inhuman screaming