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