Ans: (c)
89. The inclination of the earth"s axis, i.e. the earth"s axis is tilted at an angle from a perpendicular to the orbital plane
    or makes an angle with the plane of the earth"s orbit. What are these respective angles?
    (a) 23 1  and 66 1 
              2            2
    (b) Only 23 1 
                    2
    (c)   Only 66 1 
                    2
    (d) None of the above
Ans: (a)
90. Which of the following is the largest ocean?
      (a) Pacific
      (b) Indian
      (c) Atlantic
      (d) Arctic
Ans: (a)
91. What meridian is the International Date Line?
      (a) 0°
      (b) 90°
      (c) 135°
      (d) 180°
Ans: (d)
92. The average distance between the earth and the sun is equal to,
    (a) One light year
    (b) One astronomical unit
    (c) One parsec
    (d) None of the above
Ans: (b)
93. The largest asteroid discovered in the asteriod belt is,
    (a) Ceres
    (b) Vesta
    (c) Titan
    (d) None of the above
Ans: (a)
94. How long is the lunar day (from sunrise to the next sunrise)?
    (a) 24 hours
    (b) 126 hours
    (c) 240 hours
    (d) 708 hours
Ans: (d)
95. A lunar month (a complete cycle of phases from new moon to the subsequent new moon) is longer than the
    orbital period because,
    (a) The Earth moves along its orbit
    (b) The moon travels in an elliptical orbit
    (c) The Moon slow rotation on its axis
    (d) None of the above
Ans: (a)
96. What is the brightest star in the night sky?
    (a) Sirius
    (b) Canopus
    (c) Spica
    (d) None of the above
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