Results from the Phoenix lander and Curiosity rover suggest that the positive result from the Viking Labeled Release experiment was probably due to
A) the destruction of organic molecules by oxygen released when perchlorates in the soil decomposed on heating
B) terrestrial contamination from the robotic arm which took the samples
C) a malfunction in the experiment
D) high levels of radioactivity in the soil
A
You might also like to view...
A lunar month is about 28 days. If the Moon were closer to Earth than it is now, the lunar month would be
A) more than 28 days. B) unchanged at 28 days. C) less than 28 days.
A camera lens is initially set at f/16 for a shutter speed of 1/30 s. If the amount of lighting on the subject is unchanged, and the lens is set at f/5.6, what is the proper shutter speed at this setting?
a. 1/8 s c. 1/500 s b. 1/250 s d. 1/16 s
In addition to Mars, which jovian moon shows some promise of life, with a surface not that different from the Arctic Ocean?
A) Titan B) Miranda C) Europa D) Io E) Triton
Three identical resistors are connected in parallel to a 12. V battery. What is the voltage of any one of the resistors?
A) 36. V B) 18. V C) 12. V D) 4. V E) 3. V