Answer:
Not sure about this, but I believe it's pressure. I'm not sure what exactly you're asking. I hope this helps!
Explanation:
The higher the pressure, the less volume the gas has.
They are said to be “denser” than air. what happens is that light slows down when it passes from the less dense air into the denser glass of water. this slowing down the ray of light also causes the ray of light to change directions. it is the change in the speed of the light that causes refraction.
It is a codon. A codon codes for Amino acids and an Anti-codon Codes for the breakdown of Amino Acids.
I believe the answer is Planet Nine.