Q. Layer of atmosphere which separates the stratosphere and troposphere is known as

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Q. Layer of atmosphere which is accessed by jet-powered aircraft is

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Q. Height of stratosphere layer above the sea level of mesosphere is

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Q. One which is not notable moon of planet 'Uranus' is

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Q. The orbit period of planet Uranus is

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Q. The known rings of planet Uranus are

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Q. Orbit distance of planet Uranus is

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Q. The number of known artificial satellites 'Moon' are

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Q. Equatorial diameter of seventh planet Uranus from the Sun is

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Q. The polar diameter of seventh planet Uranus from the Sun is

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Q. Planet Uranus was discovered by William Herschel in

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Q. The planet Uranus was discovered by

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Q. The coldest planet is

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Q. The time Uranus takes to complete one orbit around its own axis is

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Q. Surface temperature of planet Uranus is

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Q. The polar and equatorial diameter of planet Venus is

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Q. Orbit period of planet Mercury is

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Q. First man made craft Venera '3' was launched by

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Q. First man made craft Venera '3' was launched in

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Q. The temperature of planet Venus is so high because it is wrapped in blanket of gas

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