Aisha wonders whether wind or water causes the most erosion. she set up an experiment in which she used a watering can to pour water down a pile of dirt. she then used a fan to blow wind on a second pile of dirt that is the exact same shape and size as the first pile of dirt. aisha then measured how the height of the dirt piles changed. she also drew pictures of how their shape changed. in this experiment, what was the dependent variable?

carbohydrates: (starches and sugars) composed of carbon, hydrogen, and oxygen.

lipids: (fats, oils, and waxes) are made of carbon and hydrogen atoms.

nucleic acids: contain hydrogen, oxygen, nitrogen, carbon, and phosphorus. they are polymers of nucleotides. a nucleotide has three parts, a 5-carbon sugar, a phosphate     (-po⬇️4) group, and a nitrogenous base.

proteins: made up of nitrogen, carbon, hydrogen, and oxygen. they are polymers of amino acids.

b brown mice / white sand dunes