Early Earth Quiz

What was the primary gas present in the atmosphere of early Earth?

• Oxygen

• Nitrogen

• Methane

• Carbon Dioxide

During the formation of Earth, what type of geological activity was most prevalent?

• Earthquakes

• Volcanic activity

• Erosion

• Sedimentation

What was the approximate surface temperature of early Earth?

• Below freezing

• Moderate, similar to today

• Extremely high, possibly over 1000°C

• Earth was entirely covered by ice

Which of the following conditions was NOT present on early Earth?

• High levels of UV radiation

• Abundant liquid water

• A stable oxygen-rich atmosphere

• Frequent lightning storms

What role did volcanic activity play in the early conditions of Earth?

• It cooled the planet rapidly.

• It released gases that contributed to the atmosphere.

• It formed the first oceans.

• It prevented the formation of landmasses.