World geography Quiz 3 September 22, 2018 September 22, 2018 Please enter your email: 1. The sunspots cause: [UP PCS 1995] magnetic storms on the surface of the sun polar auroras aurora borealis and aurora australis all of these 2. The light coming from stars gives the idea of their: rotational speed mass temperature size 3. Super Nova is : [CDS 1994] a comet a dying star a black hole an asteroid 4. The period of one revolution of sun around the centre of galaxy is called: Astronomical year Parsec Cosmic year Light year 5. Lunar Sea refers to : a light water body illuminated by the moon-light a dark plain on the moon a small sea on the moon a sea on earth which experiences high tides due to gravitational attraction of the moon 6. Which two planets of the solar system have no satellites? Mercury and Mars Venus and Neptune Mercury and Venus Venus and Mars 7. ‘Parsec’ is the unit of measurement of: density of stars orbital velocity of giant stars brightness of heavenly bodies astronomical distance 8. Comets revolve around: [NDA 1990] sun no single heavenly body venus earth 9. 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 gets hidden behind Venus it being too close to the Sun, gets hidden by the glare of the Sun it goes too far away from the Earth 10. The Milky way extends through a distance: 1 light year 1010 light years 8 light years 105 light years Loading … Question 1 of 10 Share this:WhatsAppTelegramTweet Related
