Solid, liquid, and gas from least to most dense

gas, liquid, and then solid

Explanatioson:

Solids are typically going to be more dense; the molecules are more tightly packed together than in a liquid or a gas. Solids have a higher density. Liquids are more free-moving and the molecules do not hold on so tightly to each other, hence the lower density. Gases are completely free-moving and have a much lower density than the other two

multiple allele inheritance is traits controlled by more than 2 alleles (ex: pigeons having 3 alleles of one gene govern their feather color).   so the answer is a.

"it built up in the atmosphere"

i think thats it, idk, i tried looking for this exact q& a for grad. and idk if i got this question right or sorry if im wrong