Overall, Jupiter's composition is most like that of
A) Earth.
B) a comet.
C) an asteroid.
D) the Sun.
Question 2
When we are lucky enough to see an extra-solar planet transit its star
A) It will cause the star to vanish for several hours.
B) We can by the drop in light find the planet's size, mass, and density.
C) We can determine what elements are in its atmosphere.
D) We can determine its shape.
E) We can be certain it is a terrestrial, not a jovian.