Understanding Climate Change and the Greenhouse Effect

The video explains the natural greenhouse effect, which keeps Earth warm enough for life. It discusses how burning fossil fuels increases carbon dioxide levels, enhancing the greenhouse effect and leading to climate change. The video highlights the role of industrialization in raising carbon levels and the consequences of climate change, such as extreme weather. It concludes by summarizing the impact of human activities on global warming.

What is the primary effect of the natural greenhouse effect on Earth?

• It keeps the Earth warm enough for life to exist.

• It makes the Earth too hot for life.

• It causes the Earth to cool down.

• It has no impact on Earth's temperature.

What are fossil fuels primarily composed of?

• Methane and nitrous oxide

• Water and carbon dioxide

• Carbon and hydrogen

• Oxygen and nitrogen

How does burning fossil fuels affect the weight of exhaust gases compared to the fuel burned?

• Exhaust gases have no weight.

• Exhaust gases weigh more because oxygen is added.

• Exhaust gases weigh the same as the fuel burned.

• Exhaust gases weigh less than the fuel burned.

What was the concentration of carbon dioxide in the atmosphere before industrialization?

• 0.28%

• 21%

• 50%

• 78%

What analogy is used to describe the effect of added carbon dioxide on Earth's atmosphere?

• A blanket around the Earth

• A hat on the Earth

• A sweater around the planet

• A shield over the planet

Which gas is NOT mentioned as enhancing the natural greenhouse effect?

• Methane

• Nitrous oxide

• Carbon dioxide

• Oxygen

What is a significant source of methane emissions?

• Industrial waste

• Burning wood

• Paddy fields and cows

• Car exhausts

What is one consequence of the extra energy trapped on Earth due to climate change?

• Stable weather patterns

• Decreased global temperatures

• Increased ice formation

• Melting glaciers and ice caps

What extreme weather events are becoming more common due to climate change?

• More floods, droughts, and storms

• Calm and stable weather

• Frequent earthquakes

• Mild winters

What is the overall impact of enhanced greenhouse gases on the Earth's climate?

• Cooling of the Earth's surface

• No significant impact

• Stabilization of global temperatures

• Global warming and climate change