What type of sand dunes will likely form if the sand supply is limited, the wind direction is constant, and vegetation is sparse?

The boiling point of propanoic acid is higher than that of 1-butanol because: propanoic acid has a higher molecular weight than 1-butanol. propanoic acid is more soluble in water than 1-butanol. propanoic acid is a better hydrogen bond donor than 1-butanol. propanoic acid forms hydrogen bonded dimers and 1-butanol does not. 1-butanol forms hydrogen bonded dimers and propanoic acid does not.

What three things determine the shape and size of a puddle when water is poured out onto a surface

Which element would mostly likely have an electron affinity measuring closest to zero