C. When the air cannot support any more water vapor
The answer would be d) phenotype. The phenotype is the physical characteristic while the genotype is the combination of alleles from the parent--basically the part that you can't really see. The color of a flower is prominent, so that would be its phenotype. An organism's phenotype can also include certain behavioral characteristics as well, not just the way it looks! Hope this helped :)
the primary effect of earthquake are ground shaking, ground rupture, landslides tsunamis, and liquefaction
(4) organisms in a changing environment must adapt to acquire necessary traits and survive