Question

class share:shayla shepherdclass gallerytablesinstructors videoapproximately howmuch of earths oxygencomes from oceans?a - ~25%b - ~50%c - ~75%d - ~100%

Explanation:

Marine photosynthetic organisms, such as phytoplankton, are responsible for producing the majority of Earth's oxygen. Scientific consensus indicates that roughly 70-80% of the planet's oxygen originates from oceanic sources, which is closest to the ~75% option.

Answer:

C - ~75%