Our Universe: No.QuestionAnswer 1.Alcoholic drinks containEthyl alcohol 2.Jamini Roy is a famousPainter 3.Calcium is required by human body forStrong teeth and for strong bone 4.What is Muntz Metal?An alloy containing copper and zinc in the proportion of 3:2 5.The first man to reach south pole wasAmundson 6.What is Interpol?International Police 7.In how many fields the nobel prize is awarded?6 8.Who is the writer of "Swami and Friends"R.K.Narayan 9.Which is the brighest star in our solar system?Sirius 10.The earths annual circuit round the sun covers a distance of966 million km 11.The speed per minute at which the earth revolves round the sun ismore than 1600 km 12.Which gas is most predominent in the sun?Hydrogen 13.The time taken by the Uranus to revolve round the sun is approximately?84 years 14.Which is the brighest planet as seen from the earth?Venus 15.The distance between the earth and the sun is greatest duringAphelion 16.The earth rotates on its axis fromWest to East 17.On which of the following planets of solar system does the sun rise in the west and set in the east?Venus 18.The planet Pluto's orbit around the sun takes about248 years 19.The biggest star in our galaxy isSun 20.The nearest star to earth (excepting the sun), in our galaxy isProxima centuri 21.Who was the first to observe sun-spots?Galileo 22.What is the sun-spots?These are cooler areas which move about on the sun's surface and show up as dark spots. 23.The only planet in the solar system which rotate on its axis from East to West isUranus 24.What is the distance between the earth and the sun?150 x 10*10*10*10*10*10 km 25.How many times is sun bigger in size than the earth?109 times 26.When was neutron,one of the particles of an atom,discovered?1932 27.The sun's heat and light energy reaches the earth by which mode of transmission?Radiation 28.How many days does the moon take to return to the same position among the constellations?28 days 29.Which planet takes the least time to complete one revolution around the sun?Mercury 30.Name two planets which appear as 'moving star' in the eastern sky and 'evening star' in the western sky.Mercury and Venus 31.Name two planets lying between the sun & the earth.Mercury and Venus 32.Who was the first to determine that the day on the mars was,like ours,roughly 24 hours long?Giordano Bruno 33.How long does a sun-ray take to travel from the sun to the earth?500 seconds 34.The comet named after Edmund Halley,reappears after the time interval of every76 years 35.Titan,the largest moon in the solr system, is also the largest moon ofSaturn 36.Who was the first person to measure the size of another planetChristian Huygens 37.Who was the first to speculate that Venus is completely covered with cloudsChristian Huygens 38.The atoms are composed of how many kinds of elementary particles?Three 39.What name is given to the path of the sun amongst the stars in our galaxy?Ecliptic 40.The visible part of the sun is calledIonosphere 41.Which of the planets reflects back to space the highest percentage of light it receives from the sun than any other planet of the solar system?Venus 42.Who wrote the book "Harmonies of the World"?Johannes Kepler 43.What will happen if the Earth were to stop its rotatory motion on its axis?There will be no day and night as at present 44.In which part of the solar system is the sun located?Approx. at the centre of the system 45.Which of the planets turns on its axis in 24 hours and 37 minutes?Mars 46.Who was the first to measure the distnce round the earth?Eratosthenes 47.What percentage of the irregular surface of the Earth is covered with water?80 % 48.Which planet was for the first time observed in 1930?Pluto 49.Which of planets has almost the same mass,size and density as the Earth?Venus 50.The temperature at the surface of the sun and its centre is respectively,about6000 k