| Assertion [A]: The planet Neptune appears blue in colour, |
| Reason [R]: The presence of Methane gas in the atmosphere of Neptune is responsible for its colour. |
A) Both A and R are true and R is the correct explanation of A.
B) Both A and R are true but R is not the correct explanation of A.
C) A is true, but R is false.
D) A is false, but R is true.
Correct Answer: A
Solution :
Neptune's atmosphere is made up of hydrogen, helium and methane. The methane in Neptune's upper atmosphere absorbs the red light from the sun but reflects the blue light from the Sun back into space. This is way Neptune appears blue.
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