Moon has no atmosphere because

A. it has no population

B. it is quite far off

C. its surface is full of rocks

D. its gravity is not sufficient for any atmosphere to hold on to it

Please do not use chat terms. Example: avoid using "grt" instead of "great".

You can do it
  1. Antiparticle of electron is
  2. The colour of a star is an indication of its
  3. The rocket engine is motivated by jet propulsion which uses the famous
  4. Why is it cool near an open pond on a hot summer day?
  5. Which force is used when milk is churned to separate cream?
  6. When a steel ball is placed on the surface of mercury, it does not sink because
  7. The rate of cooling of a hot body depends on
  8. The Space Application Centre for training in Satellite Communication Technology is located at
  9. While crossing a suspension bridge, the soldiers are ordered to break steps because
  10. A balloon ruled with hydrogen will
  11. X-rays are used
  12. The period of oscillation of a simple pendulum depends upon
  13. A bolometer is used to measure
  14. The strength of an electromagnet can be increased by
  15. A bar magnet tied in the middle with a thread is suspended at the South Pole of the earth. The magnet…
  16. Formation of shadows can be explained by
  17. When we sweat, we feel comfortable under a fan because
  18. A pair of stars that revolve round each other is
  19. The speed of sound in air at 0° C is approximately
  20. A device used to measure heights above sea level is known as
  21. The image formed by a plane mirror is
  22. Which of the following wires of same dimensions offers least resistance to the ,flow of current?
  23. The best estimates of the age of the earth comes from the studies of
  24. The Solar System lies near the edge of a galaxy known as
  25. Chronometer la an instrument to measure
  26. The property of a fluid by which it resists relative motion within itself is known as
  27. The source of electric energy in an artificial satellite is
  28. The world's first artificial satellite Sputnik I was launched by Russia in
  29. In a refrigerator cooling is produced by
  30. Cosmic rays are