Explain why the two outermost gas giant planets, Uranus and Neptune, appear so different from the innermost gas giant planets Saturn and Jupiter
What will be an ideal response?
Uranus and Neptune appear significantly different from Jupiter and Saturn because of the differing amounts of ammonia and methane in their outer atmospheres. The amount of ammonia decreases with distance from the Sun because it freezes out below 70 K. Thus Uranus and Neptune have little gaseous ammonia in their atmospheres. Methane is found in increasing abundance with distance from the Sun and gives a blue color to the planets. Uranus appears bluish-green and Neptune, very blue.
You might also like to view...
We are able to define a mechanical equivalent for heat because
A. some thermal energy can be converted into mechanical energy. B. mechanical energy can be converted into thermal energy. C. work can be converted into thermal energy. D. some thermal energy can be converted into work. E. all of the above can occur.
Two boys in a canoe toss a baseball back and forth. What effect will this have on the canoe? Neglect (velocity-dependent) frictional forces with water or air
a. None, because the ball remains in the canoe. b. The canoe will drift in the direction of the boy who throws the ball harder each time. c. The canoe will drift in the direction of the boy who throws the ball with less force each time. d. The canoe will oscillate back and forth always moving opposite to the ball. e. The canoe will oscillate in the direction of the ball because the canoe and ball exert forces in opposite directions upon the person throwing the ball.
Why is the angular magnification of a microscope negative?
A. The image is smaller than the object. B. The image is inverted. C. The focal length is negative D. The eyepiece focal length is less than the objective focal length.
The critical temperature above which pair production can occur is called the:
A) Chandrasekhar Limit. B) Cosmological Constant. C) fusion temperature. D) threshold temperature. E) event horizon.