1) If galaxies further move apart, hydrogen will be used in the production of new a. planets b. stars c. galaxies d. clusters
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2) Ptolemy lived from 120 AD to a. 170 AD b. 180 AD c. 190 AD d. 200 AD
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3) At light speed, reaching to sun from earth it will take approximately a. 8 seconds b. 8 minutes c. 8 days d. 8 years
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4) Scientists believe that the whole universe is a. shrinking b. expanding c. destroying d. vanishing
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5) Astronomers tuned up their telescopes to pick up radio waves from a. close galaxies b. distant galaxies c. close stars d. close clusters
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6) Our atmosphere makes it very difficult to study a. Sun b. Moon c. Earth d. Jupiter
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7) The number of basic shapes of 'galaxies' is a. 2 b. 3 c. 4 d. 5
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8) A revolution of earth takes about a. a day b. an hour c. a year d. a month
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9) Sunspots are not always at the same place on the a. galaxy b. earth c. moon d. sun
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10) Solar panels are orbiting above the earth about a. 600 meters high b. 1200 meters high c. 600 kilometers high d. 1200 kilometers high
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11) A reflecting telescope can collect light from a a. faint object b. close object c. black object d. white object
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12) Electrical signals are used to make radio a. spectrum b. frames c. images d. station
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13) In 1779, Edward pigott discovered a galaxy named a. Black eye galaxy b. Evil eye galaxy c. Whirlpool galaxy d. Andromeda galaxy
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14) The 'galaxies' are extremely a. hot b. far apart c. close d. cold
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15) Besides milky way, there are a. hundreds of other galaxies b. thousands of other galaxies c. millions of other galaxies d. gazillion of other galaxies
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16) The whole universe was packed into a small mass about a. 15,000 years ago b. 15 million years ago c. 15 billion years ago d. 15 trillion years ago
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17) To complete one rotation, sun takes approximately a. two days b. three days c. four days d. five days
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18) A black hole may pull matter in from a nearby a. galaxy b. cluster c. comet d. star
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19) The Earth's atmosphere acts as a filter to remove a. radiation b. gamma rays c. x-rays d. beta-rays
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20) Astrology was developed in order to predict how constellations would affect the a. sky b. galaxies c. human behavior d. myths
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