(d) 1, 2, 3, 4
Ans: (d)
29. Which of the following is/are TRUE about asteroids?
    (a) Asteroids are also known as minor planets.
    (b) They are made up of much of the same stuff as planets, but they are much smaller.
    (c) Asteroids become darker and redder with age due to space weathering.
    (d) All of the above
Ans: (d)
30. Which of the following is called as a shooting star or falling star?
    (a) Meteoroid
    (b) Asteroids
    (c) Planetoids
    (d) Comet
Ans: (a)
31. Which of the following is not a name of a comet?
    (a) Hale-Bopp
    (b) Swift-Tuttle
    (c) Halley
    (d) Ceres
Ans: (d)
32. Halley"s Comet can be seen with the naked eye from Earth in every ____ years.
    (a) 56
    (b) 68
    (c) 76
    (d) 78
Ans: (c)
33. Halley"s Comet will be seen for the second time in which year?
    (a) 2051
    (b) 2058
    (c) 2061
    (d) 2071
Ans: (c)
34. What is the difference between asteroids and comets? [CSAT IAS (Pre) 2011]
    1) Asteroids are small rocky planetoids, while comets are formed of frozen gases held together by rocky and
         metallic material.
    2) Asteroids are found mostly between the orbits Jupiter and Mars, while comets are found mostly between
         Venus and Mercury.
    3) Comets show a perceptible glowing tail, while asteroids do not.
    Which of the statements given above is / are correct?
    (a) 1 and 2 only
    (b) 1 and 3 only
    (c) 3 only
    (d) 1, 2 and 3
Ans: (c)