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Question 17

The earth retains its atmosphere because __.

  • A.The constant of gravitation is a universal constant
  • B.The velocity of escape is less than the mean speed of molecules
  • C.The velocity of escape is greater than the mean speed of molecules
  • D.The earth is spherical
Objective

Question details

Exam body
NDA
Subject
Physics
Year
2018/2019
Question no.
#17
Type
Objective
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