Why didn't a planet form where the asteroid belt is now located?
A) There was not enough material in this part of the solar nebula to form a planet.
B) Gravitational tugs from Jupiter prevented material from collecting together to form a planet.
C) There was too much rocky material to form a terrestrial planet, but not enough gaseous material to form a jovian planet.
D) The temperature in this portion of the solar nebula was just right to prevent rock from sticking together.
B
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The Moon's crust is ________ km thick on the Earth side and ________ km thick on the far side
Fill in the blank(s) with correct word
Rain that freezes upon striking a cold surface gives rise to a(n) ______________ storm
Fill in the blank(s) with correct word
Young Earth developed a layered structure under the influence of
A) impact heating and convection in its interior. B) gravitational contraction and radioactive decay. C) meteorite bombardment. D) gravity and density segregation—the process of differentiation.
The emissivity of an ideal reflector has which of the following values?
a. 0 b. 1 c. 100 d. infinity