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| What determines if universe will expand forever |
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| What is the CLOSEST planet to the sun |
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| Describe Mercury's atmosphere |
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| What type of planet is Mercury? |
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| What is the 2nd closest planet to the sun |
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| Describe Venus' atmosphere |
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Definition
| Atmosphere made up mostly of carbon dioxide (pressure is 100 times of Earth's atmosphere) |
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| Which are the terrestrial planets |
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| Mercury, Venus, Earth, Mars |
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| What planet is the 4th closest to the sun |
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| Describe atmosphere on Mars |
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Definition
| Atmosphere is made up mostly of carbon dioxide (0.6% pressure of Earth's) |
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| Between the orbits of Mars and Jupiter |
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| Venus hottest temperatures on the planet |
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