Twinkling of stars is caused by ?

Related Mcqs:

1. In a typical H-R diagram, stars are graphed by these two characteristics:

   A. Temperature and luminosity
   B. Luminosity and distance
   C. Distance and temperature
   D. Size and distance

   Submitted by: Mansoor Ul Haque

2. Particle clouds from where stars are formed are known as____________?

   A. Stellar nurseries
   B. Star clouds
   C. Event horizons
   D. Singularities

   Submitted by: Mansoor Ul Haque

3. What are the names of the two stars in the Big Dipper used to locate Polaris?

   A. The North Seekers
   B. The Pointer Stars
   C. The Pointer Sisters
   D. None of these

   Submitted by: Mansoor Ul Haque

4. what are stars mainly made of ?

   A. Balls of gass
   B. Rock
   C. Ice
   D. Light

   Submitted by: Farjan Ahmed Soomro

5. The light of distant stars is affected by __________ ?

   A. The earth’s atmosphere
   B. Interstellar dust
   C. both A and B
   D. None of these

   Submitted by: Rashid Mehmood

6. Stars in the sky appear to twinkle due to _________?

   A. a series of refractions
   B. a series of reflections
   C. a surface tension phenomenon
   D. multiple diminishing brightness

   Submitted by: Abid Hussain

7. Monsoon is caused by____________________?

   A. Seasonal reversal of winds
   B. Revolution of earth
   C. Movement of clouds
   D. Rise in temperature
   E. Rain forests

8. Muscle fatigue is caused by the accumulation of___________?

   A. Uric acid
   B. Lactic acid
   C. Oxalacetic acid
   D. Fyruvie acid

   Submitted by: WIQAR AHMAD

9. Tooth decay is caused by?

   A. Salt
   B. Sugar
   C. Calcium
   D. Formalin

   Submitted by: Ashfaque Ali Khoso

10. Leprosy is the oldest disease in the world caused by which microorganism?

    A. Virus
    B. Fungi
    C. Bacteria
    D. None

    Submitted by: Ali Mallah