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, saw a significant rise in atmospheric oxygen levels due to photosynthetic organisms, leading to changes in greenhouse gas concentrations and ultimately contributing to cooling.
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
1 answer
1 answer