Comets Are Small Solid Bodies of Rock or Iron in the Outer

Q32: _ is the planet that is most

Q33: The Moon and Mercury lack _.<br>A) a

Q34: Like most stars the sun is made

Q35: Venus's atmosphere has much more carbon dioxide

Q36: The sun, its eight planets and their

Q38: The absence of fold mountains and the

Q39: The moon formed from debris blasted out

Q40: As meteors enter the Earth's atmosphere, large

Q41: _ is the most volcanically active object

Q42: The Earth is but one of eight