ari7lway9savGom ari7lway9savGom

16-02-2016
Biology

contestada

Ancient cyanobacteria released ______, which assisted in creating the atmosphere as we know it today.
a. hydrogen
b. oxygen
c. lead
d. ore

Respuesta :

Аноним Аноним

16-02-2016

oxygen is you answer

Answer Link

GangstaGurl GangstaGurl

16-02-2016

I would probably go with B. Oxygen, I hope that this helps!

Answer Link

Otras preguntas

what multiplies to 20 and adds 17

_______________: a group of people working together to achieve specific goals. a. Grapevine b. Compatible c. Lateral d. Organization

What shared belief of both Justinian and Charlemagne helped build cultural unity in Europe? (5 points) Question 13 options: 1) the importance of Islamic scholar

How did Coxey's Army affect the nation? It produced nationwide panic. It spread disgust for big business. It helped the cause of women's suffrage. It ended the

When assembling a writing plan for an essay, which of the following should come first? A. Material that catches the reader's interest B. A brief summary

what multiplies to 20 and adds 17

14=14 what's the missing exponent

If our future is determined by fate, it is not logical that we have any ___. A.ire B.jeopardy C.volition D.suavity

the radius of cookies is 5 inches. what is the cookies circumference?

a Which word or words should be capitalized in this sentence? Well, aunt sylvia makes the best macaroni salad in the city. A. Aunt Sylvia B. City C. Macaroni Sa