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.
well the answer is 2!