Respuesta :
Ok most of the air we breathe is hydrogen and oxygen photosynthesis is a reaction in plants that produces O or oxygen if there is not enough room for the air to circulate it would mean you don't have a very good supply of oxygen photosynthesis matters cause it takes in Co2 2 parts carbon and 1 part oxygen and the waste that the plants produce is oxygen and is what we breathes so that Si your answer
Photosynthesis is the system where plants take light from sun, takes water from soil, and takes carbon dioxide from air, and turns it into 2 things: glucose (used for energy), and oxygen, which is released into air. This is how plants get food they go through the process of photosynthesis.