Multiple Choice
What were the results of the life-sciences experiments aboard the Viking landers?
A) strong reactions releasing oxygen from apparent biological causes (e.g., bacteria)
B) none at all; the Martian soil is completely chemically inert and biologically sterile.
C) strong reactions releasing oxygen but from nonbiological causes
D) slight fizzing due to released carbon dioxide but very little else
Correct Answer:
Verified
Correct Answer:
Verified
Q17: Earth's average density (5520 kg/m<sup>3</sup>) is slightly
Q18: In what way was the production of
Q19: How was water ice discovered near Mercury's
Q20: In what way was the production of
Q21: In which of these physical characteristics are
Q23: The surface temperature of Venus has been
Q24: When the solar wind (mostly protons and
Q25: The Moon raises tidal bulges on Earth
Q26: Where has water ice been found on
Q27: An observer on the surface of Venus