A successful theory of the formation of the solar system must explain:
A) that all planets rotate in a prograde sense.
B) that all planets have elliptical orbits with high eccentricities.
C) the existence of the asteroid belt between Jupiter and Neptune.
D) that the inner planets have more hydrogen and helium in their atmospheres than do the outer planets.
E) all observed properties of the solar system.
Question 2
Energy from the core of the Sun first travels slowly through the convection zone and then much faster through the radiation zone.
Indicate whether the statement is true or false
