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: Cosmic year Parsec Astronomical year Light year 2. Lunar Sea refers to : a light water body illuminated by the moon-light a small sea on the moon a sea on earth which experiences high tides due to gravitational attraction of the moon a dark plain on the moon 3. Super Nova is : [CDS 1994] a black hole a dying star a comet an asteroid 4. The sunspots cause: [UP PCS 1995] all of these aurora borealis and aurora australis polar auroras magnetic storms on the surface of the sun 5. Which two planets of the solar system have no satellites? Mercury and Mars Venus and Mars Mercury and Venus Venus and Neptune 6. ‘Parsec’ is the unit of measurement of: brightness of heavenly bodies density of stars orbital velocity of giant stars astronomical distance 7. Comets revolve around: [NDA 1990] sun venus earth no single heavenly body 8. 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 9. The light coming from stars gives the idea of their: rotational speed mass temperature size 10. The Milky way extends through a distance: 8 light years 1 light year 1010 light years 105 light years Loading … Question 1 of 10 Share this:WhatsAppTelegramTweet Related
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