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!

Answer Link

Otras preguntas

Who was Thomas Aquinas? A. a thirteenth-century scientist who tried to prove the existence of God B. a thirteenth-century lord who acquired a lar

What 60% of what number is 80? How do I figure this out?

I have a data set of 25, 28, 36, 21, 28, 15, 24, 30. if a number is added to the set the mean becomes 27, what is the number???

what is 0.84 as a fraction in simplest form

During the first three Presidential elections the President and the Vice-President were chosen by: Congress Republicans electoral college their peers

Explain why the ultimate chemical nature of protoplasm cannot be determined.

what did Irish and Hungarian nationalists have in common

Select the words in the following sentence that should be capitalized. I would say that Michael Jordan of the Chicago Bulls would be a great World Leader becaus

How are pennies useful?

what can I do if my mouse on my laptop keeps freezing on me for 5 minutes