NASA Climate Simulation and Volcanic Eruptions

What distinguishes flood basalt eruptions from typical volcanic eruptions?

• They occur over a few hours or days.

• They have no impact on the ozone layer.

• They are associated with cooling periods.

• They consist of a series of eruptions over long periods.

What was the unexpected result of the Columbia River basalt eruption simulation?

• A prolonged cooling period.

• An intense warming effect.

• No change in global temperatures.

• A decrease in atmospheric water vapor.

How did the flood basalt eruption affect the ozone layer in the simulation?

• It increased the ozone layer thickness.

• It completely destroyed the ozone layer.

• It had no effect on the ozone layer.

• It reduced the ozone by about two-thirds.

What role do sulfate aerosols play in the atmosphere after a volcanic eruption?

• They increase the amount of water vapor in the troposphere.

• They have no effect on atmospheric temperature.

• They absorb infrared radiation, warming the atmosphere.

• They only reflect visible sunlight.

What is a possible reason for Mars and Venus being dry today?

• Lack of volcanic activity.

• Frequent meteor impacts.

• Proximity to the sun.

• Extensive flood basalt eruptions.