Countries
États-Unis - Eastern time
États-Unis - Central time
États-Unis - Mountain time
États-Unis - Mountain time (no DST)
États-Unis - Pacific time
États-Unis - Alaska time
États-Unis - Aleutian time
États-Unis - Hawaii time
États-Unis - Atlantic time / Porto Rico
Samoa Américaines
Vierges des États-Unis (Îles)
Image
Kids
L'oreille des kids
( Season
2
)
Episode
34
La photosynthèse
Duration
13 min
Photosynthesis
Photosynthesis enables a plant to produce oxygen. But in practice, how does it actually happen? What is oxygen useful for? Where does oxygen come from and why isn't there any on the other planets of the solar system?
Photosynthesis enables a plant to produce oxygen. But in practice, how does it actually happen? What is oxygen useful for? Where does oxygen come from and why isn't there any on the other planets of the solar system?
