1.Moon rocks resemble rocks from which of the following layers of the earth?
A. inner core
B. mantle
C. crust
D. outer core
2.Which of the following best explains why few impact craters are found on earth?
A.Few impacts have occurred on earth.
B. Impacts on earth do not form craters.
C. Most impacts occurred before earth was formed.
D. Erosion has erased most of the impact craters on earth.
3.How far is the earth from the sun?
A. 1 light year
B. 1 AU
C. 1 parsec
D. 1 Lenny
4.What is a light year?
A. the distance light travels in 1 year
B. a measurement of time within the universe
C. a measurement of time within the solar system
D. the distance light travels in 1 second
2007-05-24
16:09:50
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7 answers
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asked by
themodelchic
1
in
Science & Mathematics
➔ Astronomy & Space