Ascientist discovers a new planet with a blue color in its atmosphere. what can he assume about the planet?
a) the planet is very dense.
b) the atmosphere contains hydrogen and helium.
c) the atmosphere contains methane.
d) the planet is not very dense.

The answer is Methane. The new found planet in the situation is similar with Neptune's atmosphere, its bluish color is caused by methane. It also contains hydrogen and helium but these elements are not the cause of this color. The same applies with density, it does not have a relationship of having a blue colored planet.

It feels feed the echo system

Idont see a question here