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| the smallest one among the inner plantes |
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| the loargest one among the inner planets |
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| the densities of the outer planets, given in gm/cm3, are generally less than |
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| relatively very high inclination of its orbital plane relative to the orbital plane of earth |
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| pluto's status as a planet has been questioned because of |
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| which planet has the very highly tilted (nearly 98 degrees) acis of rotation relative to its orbital plane |
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| the two planets that have retrograde motion are |
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| the mass of the sun relative to the mass of the entire solar system is more than |
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| the most abundant element of the solar atmosphere is |
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| the two gases which can escape from the surgace of earth are |
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| the atmospheric composition of the outer planets is generally marked by an abundance of |
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| the early atmosphere of earth was dominated by |
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| which two among the four innner planets have their atmospheres each with a very high amount of carbon dioxide |
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| the early atmosphere of earth contained |
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| the mass of atmosphere of earth is given by |
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| 375 parts per million of co2 |
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| the current atmosphere of earth contains about |
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| formation of biologically mediated carbon dioxide beraing minerals commonly found in limeston rocks |
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| once the atmosphere of earth has much caron dioxide as that of venus, but later earth lost lot of that carbon dioxide from the atmosphere. the loss of carbon dioxide from the earth's atmosphere may be traced to |
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| the decay of one of the isotopes of patassium in the earth;s crust |
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| the argon in the earth atmosphere derived primarily from |
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| the avg density of moon is |
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| the atmosphere of moon is similar to that of |
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| the avg radius of moon is |
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| halleys comet makes a complete turn around the sun in about |
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| the sunspot appearances with a mazimum number seem to occur in a cucle of about |
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| the surgace temperature of the sun is about |
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| the avg temp in C of sunspots is about |
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| the largest asterod at the present time has a radius of about |
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