Earth binds the atmosphere because of
a)
Gravity
b)
oxygen between earth and atmosphere
c)
Both (a) and (b)
d)
None of the above
Earth binds the atmosphere because of
a)
Gravity
b)
oxygen between earth and atmosphere
c)
Both (a) and (b)
d)
None of the above
Question ID - 54596 | SaraNextGen Top Answer
Earth binds the atmosphere because of
a)
Gravity
b)
oxygen between earth and atmosphere
c)
Both (a) and (b)
d)
None of the above
|
Earth binds the atmosphere because of |
|||
|
a) |
Gravity |
b) |
oxygen between earth and atmosphere |
|
c) |
Both (a) and (b) |
d) |
None of the above |
1 Answer
127 votes
Answer Key / Explanation : (a) -
|
(a) Earth is surrounded by an atmosphere of gases (air). The reason is that in earth’s atmosphere the average thermal velocity of even the highest molecules at the maximum possible temperature is small compared to escape velocity which in turn depends upon gravity ( |
. Therefore, the molecules of gases cannot escape from the earth. Hence, an atmosphere exists around the earth.127 votes
Answer Link
127