1.      Solar energy is received by the earth through

                    Radiation

2.      The Sun and the Planets revolving round it are known as………..

                   The Solar System

3.      This of the following planets has almost the same mass, siz and density as the Earth?

                   Venus

4.      How many times is the mass of the earth greater than that of the moon?

                     81

5.      How much time does the Moon take to go around the earth?

                    27.3 days
6.      What is known as a ‘shooting star’?

                    Meteor

7.      What are dirty snowballs or icebergs in the sky?

                  Comets

8.      Which theory about the origin of the universe is widely accepted today?

                  Big Bang theory

9.      What is the shape of a planet’s orbit around the sun?

                   Ellipse

10.  Which planet’s rings are the most easy to see?

                   Saturn

11.  What is the temperature of the surface of the sun?

                   6OOOoc

12.  Galileo Satellies, named after their discoverer, are four large moons of the planrt?

                   Jupiter

13.  Name the layer of the atmosphere where all weather phenomena take place

                  Troposphere

14.  What is the shape of the Earth?

                  Oblate spheroid

15.  The difference between the equatorial and polar diameters of earth is………

                    42 km

16.  Which gas in the atmosphere absorbs ultraviolet rays?

                    Ozone

17.  Latitudes are also known as,

                     Parallels

18.  Longitudes are also known as,

                     Meridians

19.  The Great Circle is the name for,

                     The Equator

20.  The coldest region of the atmosphere

                   Mesosphere

21.  The outermost layer of the Earth on which on our continents are seen is,

                   Lithosphere

22.  Greenwich Mean Time (GMT) is also known as,

                   Meridian time

23.  Which of the following is rich in ozone layer?

                  Stratosphere

24.  The lowest layer of atmosphere is:

                 Troposphere

25.  The normal pressure at the sea level

                  1013.3 mb
 
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