Understanding Climate Change and Greenhouse Gases

What is the primary purpose of the simulation used in the lecture?

• To predict future climate changes.

• To show the effects of visible light on plants.

• To demonstrate the behavior of different gases in the atmosphere.

• To calculate the exact temperature of the Earth.

How does methane interact with infrared photons?

• It allows them to pass through without interaction.

• It converts them into visible light.

• It reflects them back to their source.

• It absorbs them and releases them in random directions.

Which of the following gases is NOT considered a greenhouse gas?

• Methane

• Oxygen

• Carbon Dioxide

• Water Vapor

Why are certain gases called greenhouse gases?

• They are used in greenhouses to grow plants.

• They trap infrared light like the glass panes of a greenhouse.

• They are only found in greenhouses.

• They are green in color.

What was the concentration of CO2 in the atmosphere before the Industrial Revolution?

• 280 parts per million

• 500 parts per million

• 350 parts per million

• 410 parts per million

How has the concentration of CO2 changed since the Industrial Revolution?

• It has decreased significantly.

• It has remained the same.

• It has increased to 388 parts per million.

• It has increased to 280 parts per million.

What is the current concentration of CO2 in the atmosphere as of 2019?

• 410 parts per million

• 388 parts per million

• 350 parts per million

• 280 parts per million

Why is the increase in greenhouse gases a concern for climate scientists?

• It leads to more plant growth.

• It causes the Earth's temperature to rise.

• It makes the atmosphere more colorful.

• It reduces the amount of sunlight reaching Earth.

What is the agreed-upon dangerous concentration of CO2 for climate change?

• 280 parts per million

• 410 parts per million

• 500 parts per million

• 350 parts per million

What is the main focus of the unit on power in relation to climate change?

• Ignoring climate change concerns.

• Increasing the use of fossil fuels.

• Building more power stations.

• Reducing greenhouse gas emissions.