The Impact of Greenhouse Gases on Earth's Temperature and Climate

The video explains the composition of Earth's atmosphere, highlighting the role of greenhouse gases like carbon dioxide and methane in retaining heat. It describes how photons from the Sun interact with Earth's surface, leading to heat absorption and reflection. The video emphasizes the importance of greenhouse gases in maintaining Earth's temperature and discusses the impact of human activities on increasing these gases, leading to global warming and climate change. It concludes with the potential future effects of climate change and the importance of energy choices.

What percentage of Earth's atmosphere is made up of nitrogen?

• 21%

• 78%

• 1%

• 50%

Why are certain gases in the atmosphere called greenhouse gases?

• They trap heat in the atmosphere.

• They help plants grow.

• They are green in color.

• They are only found in greenhouses.

What happens to photons when they hit a dark surface like a forest?

• They are absorbed and converted to heat.

• They disappear.

• They are reflected back into space.

• They change color.

How does wearing dark clothing affect your body temperature in sunlight?

• It keeps you cooler.

• It has no effect.

• It absorbs photons and increases heat.

• It reflects sunlight.

What role do greenhouse gases play in Earth's temperature regulation?

• They only affect the poles.

• They help maintain a livable temperature.

• They have no effect.

• They cool the planet.

What human activities have increased greenhouse gas concentrations?

• Planting trees.

• Using solar panels.

• Recycling.

• Burning fossil fuels and agriculture.

By how much has the concentration of carbon dioxide increased since the 1960s?

• 40%

• 30%

• 20%

• 10%

What is the term for the increase in Earth's average temperature due to greenhouse gases?

• Global cooling.

• Climate stabilization.

• Global warming.

• Weather change.

What are some documented effects of climate change?

• Stable weather patterns.

• Increased snowfall.

• More severe storms and droughts.

• Decreased sea levels.

What factor will largely determine the extent of future global warming?

• The number of trees planted.

• The energy choices we make.

• The amount of rainfall.

• The number of cars on the road.