What role did cyanobacteria play in the cambrian explosion? quizet?

Cyanobacteria, also known as "blue-green algae", are the unicellular organisms which are able to produce oxygen.

Approximately 540 years ago, the atmosphere was very poor on oxygen. Cyanobacteria are thought to be responsible for the oxidization of the atmosphere back then, in an event known as "The Great Oxygenation Event". As a result, Earth's life forms suffered drastic changes in their composition, as they evolved from being anaerobic to becoming organisms highly dependant on oxygen. The oxygenation of the atmosphere would eventually provide the adequate environment in order for the Cambrian Explosion, or the first diversification of living organisms, to happen.  

nuclear fission produces the atomic bomb, a weapon of mass destruction that uses power released by the splitting of atomic nuclei the fighting in iwo jima and okinawa affected the allies' pacific strategy because truman decided to drop the atomic bomb on mainland japan.

explanation:

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