The reddish particles in Jupiter's ring are less than 1 percent as reflective as Saturn's whiter particles. Saturn's ring particles are thought to be ____________while Jupiters are thought to be ____________

a. icy; rocky
b. rocky; icy
c. icy; also icy
d. rocky; also rocky


a

Physics & Space Science

You might also like to view...

__________ in Earth's atmosphere absorbs most microwave and infrared radiation coming from outside Earth's atmosphere

a. Ozone b. Water vapor c. Methane d. Carbon dioxide

Physics & Space Science

Suppose we wanted to represent all of these objects using the 1-to-10-billion scale from Chapter 1, on which the Sun is about the size of a grapefruit. Approximately how large in diameter would the star Aldebaran be on this scale?

A) 40 centimeters (the size of a typical beach ball) B) 6 meters (roughly the size of a dorm room) C) 15 meters (roughly the size of a typical house) D) 130 meters (slightly larger than a football field)

Physics & Space Science

The principal greenhouse gases in our present atmosphere are:

A) hydrogen and helium. B) hydrogen sulfide and carbon disulfide. C) water vapor and carbon dioxide. D) methane and ammonia. E) sulfuric acid vapor and carbon dioxide.

Physics & Space Science

Free Fall: Brick A is dropped from the top of a building. Brick B is thrown straight down from the same building, and neither one experiences appreciable air resistance. Which statement about their accelerations is correct?

A. The acceleration of A is greater than the acceleration of B. B. The acceleration of B is greater than the acceleration of A. C. The two bricks have exactly the same acceleration. D. Neither brick has any acceleration once it is released.

Physics & Space Science