When scientists discuss the great oxygenation event, they are referring to a time when the transition from the mildly reducing Archean atmosphere-ocean system to the oxygenated atmosphere and shallow oceans of the early Paleoproterozoic that started between ~2.4 and 2.3 Ga and ended between 2.1 and 2.0 Ga.
- here The Great Oxidation Event, also called the Great Oxygenation Event, the Oxygen Catastrophe, the Oxygen Revolution, and the Oxygen Crisis, was a time interval when the Earth's atmosphere and the shallow ocean first experienced a rise in the amount of oxygen.
- in this event Gradually, the accumulated oxygen started escaping into the atmosphere, where it reacted with methane. As more oxygen escaped, methane was eventually displaced, and oxygen became a major component of the atmosphere.
- The Great Oxygenation Event (GOE) was the creation of free oxygen in our atmosphere. It was caused by cyanobacteria doing photosynthesis
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Answer:
between the South American and African Plates
Explanation:
The easterly edge is a divergent boundary with the African Plate; the southerly edge is a complex boundary with the Antarctic Plate, the Scotia Plate, and the Sandwich Plate; the westerly edge is a convergent boundary with the subducting Nazca Plate; and the northerly edge is a boundary with the Caribbean Plate and the oceanic crust of the North American Plate.
Answer:
eiffel tower Champs de mars at 5 Avenue Anatole France within the 7th arrondissement of Paris.
pantheon The oculus in the Pantheon, Rome. The Pantheon was dedicated in ad 609 as the Church of Santa Maria Rotonda, or Santa Maria ad Martyres, which it remains today.
Explanation:
Egypt. Nigeria, Libya, Algeria and Angola are the largest exporters
Answer:
Depletion of natural resources (water, forests, etc.) Pollution (air pollution, noise, sewage, waste and littering) Physical impacts (construction activities, marina development, trampling, loss of biodiversity)
