jessicakurgan23 jessicakurgan23

21-10-2020
Biology

contestada

Why do we have an oxygen-rich atmosphere?

Respuesta :

vanessaxx vanessaxx

21-10-2020

we do indeed have an oxygen-rich atmosphere!

the organism known as cyanobacteria uses sunlight,water, and CO2 to produce carbohydrates & oxygen!

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