The ultimate source of all the food we eat and the oxygen we breathe is

Question

Quizplus · Accepted Answer

Photosynthesis is the process by which plants, algae, and some bacteria convert light energy from the sun into chemical energy in the form of organic compounds. This includes the production of oxygen as a byproduct. This organic matter is then consumed by heterotrophs, such as humans and animals, for energy and biomass production. Therefore, photosynthesis is the ultimate source of all the food we eat and the oxygen we breathe.

The Ultimate Source of All the Food We Eat and the Oxygen