2. What is the total amount of square meters of farmland that Mark can use if he can overcome some problems?
(a) 62.
(b) 92.
(c) 126.
(d) 102.

3. To what degree does Mark intend to lower the temperature in the Hab to keep the soil alive while he extracts the hydrogen?
(a) 1 C.
(b) 10 F.
(c) 4 C.
(d) 25 F.

4. On Sol 75, what does Mark name the valley that allows him to follow the hills rather than simply navigate by Phobos?
(a) Lewis.
(b) Johanssen.
(c) Martinson.
(d) Wyatt.

5. What speed of sandstorm gusts is a mission supposed to be able to handle?
(a) 125 kph.
(b) 150 kph.
(c) 100 kph.
(d) 175 kph.

6. In Chapter 11, how often can a message be sent to Watney?
(a) Every 30 minutes.
(b) Once an hour.
(c) In 90 minutes.
(d) In two hours.

7. In Chapter 7, how far away is the Schiaparelli crater from Mark?
(a) 1,894 kilometers.
(b) 3,200 kilometers.
(c) 587 kilometers.
(d) 816 kilometers.

8. How many liters of water will Mark need for his farmland?
(a) 325.
(b) 175.
(c) 225.
(d) 250.

9. How long does Mark wait for the resin for his saddlebags to set up?
(a) About 90 minutes.
(b) 2 hours.
(c) 21 minutes.
(d) An hour.

10. When there is too much oxygen, to what temperature does the regulator cool it?
(a) 0 C.
(b) 90 kelvin.
(c) 32 F.
(d) 21 kelvin.

11. How far does the Hab’s nav beacon reach?
(a) 40 kilometers.
(b) 30 kilometers.
(c) 35 kilometers.
(d) 25 kilometers.

12. How many solar cell panels will Mark need to bring with him on his trip to Ares 4?
(a) 14.
(b) 17.
(c) 19.
(d) 12.

13. On Sol 80, how far does Mark reckon he is from Pathfinder?
(a) 50 kilometers.
(b) 100 kilometers.
(c) 75 kilometers.
(d) 110 kilometers.

14. On Sol 42, how long does Mark say it will take for each tank of CO2 to finish filling?
(a) 90 minutes.
(b) 10 hours.
(c) 30 minutes.
(d) 8 hours.

15. In Chapter 2, how many sols does Mark think it will be until the next ship arrives on Mars?
(a) 1,492.
(b) 684.
(c) 1,387.
(d) 987.