Multiple Choice
No life is thought to currently exist on the surface of Mars.Why is this?
A) The atmosphere is too thin.
B) Mars has no ozone layer to block strong ultraviolet rays.
C) Mars has unstable chemicals on the surface.
D) All of these
Correct Answer:
Verified
Correct Answer:
Verified
Q53: The Viking Landers found definitive proof of
Q54: What are the parameters that limit the
Q55: In the Miller and Urey experiment,a mixture
Q56: It is unlikely that planets near stars
Q57: Astronomers have carried out a number of
Q59: What strategies and electromagnetic frequencies are thought
Q60: It is unlikely that intelligent life would
Q61: How many technologically advanced civilizations are in
Q62: How is the search for extraterrestrial intelligence
Q63: The chemists who designed experiments to see