Multiple Choice
Why do Uranus and Neptune appear blue or blue-green?
A) Their atmospheres absorb blue light very efficiently.
B) Their solid airless surfaces are this colour.
C) Their surfaces are covered with liquid water with no atmosphere.
D) Traces of methane in their atmospheres absorb red light very efficiently.
Correct Answer:

Verified
Correct Answer:
Verified
Q23: Discuss why astronomers no longer consider Pluto
Q33: What observations suggest that Triton has had
Q77: Why is it believed that the rings
Q78: Saturn's belts and zones are obscured by
Q79: What causes some rings of Saturn to
Q82: Why do Uranus and Neptune contain no
Q83: In what way are Saturn's F ring
Q84: What phenomenon causes Jupiter and Saturn to
Q86: What evidence do we have that volcanism
Q88: Jupiter's intense magnetic field traps high-energy particles