Stromatolites are bacteria that used photosynthesis in the ocean to form what gas element ? Can anyone help me with this question.
No links or I’ll report.

Which of the following was an effect of allied defeats and high casualty rates on the eastern front? the united states issued the fourteen points. russia entered the war on the allied side. the united states entered the war sooner. russia experienced a revolution and dropped out of the war.

The spanish class system placed people in the top class primarily based upon how much american blood a person had. how much spanish blood a person had. where a person worked. whom a person married.

Religious men who lived apart from society