Aman is pushing a heavy crate up an inclined plane (ramp) into the back of semi trailer. what can the man do to make it easier to get the crate up the ramp?

a)
use gloves.

b)
make the ramp longer.

c)
make the ramp shorter.

d)
pull it instead of push it.

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.