In what ways are fats and steroids similar to each other and in what ways are they different?

SIMILARITIES
-They are both Lipids
-They are both composed of part carbon
-They both have hydrocarbon chain tails
-They both have hydrophobic qualities
-They are both insoluble in water

DIFFERENCES
*FATS
-Insulators
-Protection
-Energy reserves
-3 fatty acids
-3 Carbon glycerol molecule

*STEROIDS
-Control Metabolic processes
-4 rings of carbon atoms
-Branching carbon atoms
-synthesized from cholesterol
-Promote muscle growth
-enhance athletic performance
-anabolic hormones

Ibelieve the answer is relative humidity  because it makes more sense that way. solar flares usually occur in space it doesn't affect the earth, well it could but it wont make a significant damage.  latitude is land it doesnt do anything. prevailing winds, i dont know the correct meaning for this but i doubt that affects the land so it has to be relative humidity.

The last option water because it is slow