A quantitative observation must be a measurement of some sort. (Something including numbers). Qualitative, on the other hand, is when you are using words to describe what has happened.
4 atoms of Oxygen are required to make 2 atoms of hydrogen. The compound H2O is 1 Hydrogen and 2 Oxygen.
They are about 4.5 billion years old. Hope this helps.
I think it is A as solid atoms are close and gases are far away
Wait what you answered your own question
