![subject](/tpl/images/cats/geografiya.png)
Geography, 03.01.2020 05:31 jaquiel9358
Cyanobacteria are believed to generate the majority of oxygen gas in earth’s atmosphere. what allows them to produce oxygen?
a. photosynthesis in which h2s is the electron source.
b. photosynthesis in which water photolysis produces h , e , and o2.
c. bacteriorhodopsin-based photosynthesis.
d. all of the above.
e. none of the above.
![ansver](/tpl/images/cats/User.png)
Answers: 1
Another question on Geography
![question](/tpl/images/cats/geografiya.png)
Geography, 21.06.2019 17:00
Which of there factors contributed most to us westward expansion in the second half of the nineteenth century?
Answers: 1
![question](/tpl/images/cats/geografiya.png)
Geography, 23.06.2019 07:30
Which was not a country that massively built up its navy in the early 1900s? germany china united statesbritain
Answers: 1
![question](/tpl/images/cats/geografiya.png)
Geography, 23.06.2019 22:50
Which events occurred during the space race? check all that apply. (a) nasa was established. (b) yuri gagarin orbited earth. (c) the soviet union launched salyut. (d) the united states launched skylab. (e) the united states launched explorer 1.
Answers: 1
![question](/tpl/images/cats/geografiya.png)
Geography, 24.06.2019 00:30
Which two nations are doing the most to combat their environmental issues?
Answers: 1
You know the right answer?
Cyanobacteria are believed to generate the majority of oxygen gas in earth’s atmosphere. what allows...
Questions
![question](/tpl/images/cats/health.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/en.png)
English, 18.10.2020 16:01
![question](/tpl/images/cats/himiya.png)
Chemistry, 18.10.2020 16:01
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/geografiya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 18.10.2020 16:01
![question](/tpl/images/cats/mat.png)
Mathematics, 18.10.2020 16:01
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 18.10.2020 16:01
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/es.png)
Spanish, 18.10.2020 16:01
![question](/tpl/images/cats/mkx.png)
Arts, 18.10.2020 16:01
![question](/tpl/images/cats/ekonomika.png)
Business, 18.10.2020 16:01
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 18.10.2020 16:01
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
English, 18.10.2020 16:01