26. Which of the following do not belong to the solar system?

1. 1. Asteroids

   
   
   

   2. Comets

   
   
   

   3. Planets

   
   
   

   4. Nebulae

   
   
   

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   NA

   Correct Option: D

   NA

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27. The nuclear fuel in the sun is

1. 1. Helium

   
   
   

   2. Uranium

   
   
   

   3. Hydrogen

   
   
   

   4. Oxygen

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   NA

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28. The difference in the duration of day and night increases as one moves from

1. 1. West to East

   
   
   

   2. East and West of the prime meridian

   
   
   

   3. Poles to equator

   
   
   

   4. Equator to poles

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   NA

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29. The Sun reaches its maximum angular distance from the equator at the

1. 1. Zenith

   
   
   

   2. Solstice

   
   
   

   3. Equinox

   
   
   

   4. Noontime

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   NA

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30. The visible part of sun's surface is called

1. 1. Isosphere

   
   
   

   2. Photosphere

   
   
   

   3. Hydrosphere

   
   
   

   4. Mesosphere

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   NA

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