The Average Cow
of milk per year, that's nearly 2,500 gallons a year! On a daily basis, most cows average about 70 lbs. of milk per day, or about 8 gallons per day. 8 gallons is about 128 glasses of milk per day.
An autotroph is an organism that can produce it's own food. For example, a plant is an autotroph, as it uses photosynthesis to produce is food. There are also some autotrophs that are not plants, so don't get confused between the two!
They use the energy from the sun to convert into chemical energy via photosynthesis
