Question -
If the earth did not have an atmosphere, temperature extremes between day and night would
Options:
A .  decrease
B .  increase
C .  fluctuate rapidly
D .  stay the same
Answer: Option B Answer: (b)If a planet has no atmosphere, all of the sunlight which strikes it reaches the surface, and usually 90% or more of that is absorbed and 10% or less is reflected back into space. Thus the temperature will increase.
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