caitcait2002 caitcait2002
  • 08-04-2018
  • Biology
contestada

Describe the source of free oxygen in the Earth’s early atmosphere

Respuesta :

lholland0052
lholland0052 lholland0052
  • 11-04-2018
tree's give off oxygen for us to breath
Answer Link

Otras preguntas

Which of the following sets of numbers could be the lengths of the sides of a triangle? A. 8 m, 8 m, 17 m B. 8 m, 4 m, 2 m C. 8 m, 16 m, 24 m D. 8 m, 6 m, 4 m
Were most of the American immigrants before the Revolutionary War Italian?
The _______ were responsible for the forced migration of more people from Africa than any other colonial power. A. British B. Portuguese C. Dutch D. Spanish
During takeoff, an airplane goes from 0 to 56 m/s in 9 s. How fast is it going after 4 s?
Solve. 12 – (2 × 3) A. 6 B. 12 C. 12(2) D. 23
Which organism would be most likely at the top of a food web? A. rabbit B. deer C. coyote D. cow
What is the sum of the first n terms of this sequence 3,4,5,6,7.///
who first introduced the idea that the sun is center of the universe
This Chinese emperor wrote the most complete dictionary and ruled longer (sixty-one years) than any previous leader. Qianlong Kangzi Chou Hongwu
Write 29/5 as a mixed number in simplest form.
good job