Astronomy Worksheets With Answers - Georgia Milestones Page 8
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11Georgia Milestones Practice Test 1 (GaMT1)
32. Use the table below to answer this question.
This table shows data for major characteristics of the nine planets in the solar system. (One revolution is the
length of time required for a planet to make one complete trip around the Sun; one rotation is the length of time
required for a planet to make one complete turn on its axis.)
Which of the following planets has the shortest day measured in Earth time?
A. Pluto
B. Earth
C. Jupiter
D. Mercury
33. There are about 24 hours in a day. What would happen to the length of a day if the rotation of Earth sped up?
A. The length of a day would be shorter.
B. The length of a day would be longer.
C. The length of a day would remain the same.
D. The length of a day would be unpredictable.
34. The Moon appears to change shape because
A. the Moon rotates.
B. Earth rotates.
C. Earth revolves around the Sun.
D. the Moon revolves around Earth.
35. Life on Earth is protected from the Sun's ultraviolet radiation by
A. the cloud cover.
B. dust particles.
C. water vapor.
D. the ozone layer.
36. Footprints made by astronauts on the Moon many years ago are probably still there because
A. the heavy astronauts left very deep footprints in the Moon's dust.
B. the dust on the Moon hardened into stone.
C. time passes much more slowly on the Moon.
D. the Moon has no weather.
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