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question_answer1) The atmosphere of planet 'X' is made up of carbon dioxide. Chemical reactions between the atmosphere and the surface of 'X' make clouds of sulphuric acid. The sulphuric acid rain never reaches the ground, but is evaporated by the heat before reaching the surface in a phenomenon known as virga. Name the planet 'X' mentioned in the above paragraph.
question_answer2) Arrange the given planets according to their size in descending order. Saturn, Neptune, Venus, Mars
question_answer3) Which of the following statements is/are correct ? (i) Moon is the only satellite in the solar system with thick atmosphere and clouds. (ii) The fastest winds in the solar system blow on Neptune. (iii) Extra-vehicular activity involves venturing out of the spacecraft, in the space, to perform experiment. (iv) Halley's comet can be seen once in 78 years.
question_answer4) Select the mismatched pair
question_answer5) Which of the following is the nearest star to the Earth after Sun ?
question_answer6) Which of the following is the brightest star in the night sky ?
question_answer7) Which of the following is the first human-made object to reach the surface of the Moon?
question_answer8) Which of the following is not a dwarf planet?
question_answer9) Meteors are _______.
question_answer10) 'X' is a group of stars visible during winter season in the late evening. It resembles a hunter in the kneeling position. What is 'X' ?
question_answer11) The celestial bodies which revolve around the Sun between the orbits of Mars and Jupiter are called
question_answer12) When an astronaut makes a visit to moon then he perceives the colour of the outer space as
question_answer13) The person shown in the given picture is an American astronaut who performed the longest space walk for 8 hours and 56 minutes. Identify her.
question_answer14) Apollo 11 was launched on a 363-foot- tall rocket called ______.
question_answer15) While watching stars Rohan found that a star is appearing blue. It is because
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