World geography Quiz 3 September 22, 2018 September 22, 2018 Please enter your email: 1. The period of one revolution of sun around the centre of galaxy is called: Astronomical year Light year Cosmic year Parsec 2. Lunar Sea refers to : a dark plain on the moon a small sea on the moon a light water body illuminated by the moon-light a sea on earth which experiences high tides due to gravitational attraction of the moon 3. The sunspots cause: [UP PCS 1995] all of these magnetic storms on the surface of the sun aurora borealis and aurora australis polar auroras 4. Which two planets of the solar system have no satellites? Mercury and Venus Venus and Neptune Venus and Mars Mercury and Mars 5. ‘Parsec’ is the unit of measurement of: density of stars brightness of heavenly bodies astronomical distance orbital velocity of giant stars 6. The light coming from stars gives the idea of their: rotational speed temperature size mass 7. The planet Mercury is difficult to be observed most of the time because: it cannot be seen at night as at that time no sunlight falls on it. it being too close to the Sun, gets hidden by the glare of the Sun it goes too far away from the Earth it gets hidden behind Venus 8. The Milky way extends through a distance: 8 light years 1010 light years 105 light years 1 light year 9. Super Nova is : [CDS 1994] a dying star a comet an asteroid a black hole 10. Comets revolve around: [NDA 1990] sun no single heavenly body venus earth Loading … Question 1 of 10 Share this:WhatsAppTelegramTweet Related
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