Question

What was the main effect of the Great Oxygenation Event on Earth’s climate?(1 point) Responses Increased global temperatures Increased global temperatures Lowered global temperatures Lowered global temperatures Increased carbon dioxide levels Increased carbon dioxide levels Increased methane levels

Answer 1

The main effect of the Great Oxygenation Event on Earth's climate was "Lowered global temperatures." This event, which occurred around 2.4 billion years ago, resulted from the production of oxygen by photosynthesizing microorganisms, leading to significant changes in the atmosphere and a subsequent cooling of the planet.