I agree that is a very great question i think the answer is knknjnknkbjk;
Acids are solutions/substances that tend to break off to make a hydrogen (H+) ion when placed in an aqueous solution; i.e. solution with water as its solvent.
Bases, on the other hand, produce a hydroxide ion (OH-) when placed in an aqueous solution.
Thus, by definition, we can safely assume that a solution containing a large number of hydroxide ions is considered a base.
If you are unclear about this, or still need help, please feel free to ask me further. Thank you.
Growth hormone deficiency or (GH)
It's water vapor, which is gas that is lighter than nitrogen or oxygen.