Understanding the Greenhouse Effect

What is the greenhouse effect?

• A process where the Earth's surface is cooled by the atmosphere

• A process where the Earth's surface is warmed by trapping heat in the atmosphere

• A process where the Earth's surface is heated by volcanic activity

• A process where the Earth's surface is cooled by ocean currents

What are greenhouse gases?

• Gases that cool the Earth's surface

• Gases that trap heat in the Earth's atmosphere

• Gases that are only found in greenhouses

• Gases that are released by plants during photosynthesis

Which of the following is NOT a greenhouse gas?

• Carbon dioxide

• Methane

• Oxygen

• Water vapour

How do human activities affect the greenhouse effect?

• They decrease the amount of greenhouse gases

• They have no impact on the greenhouse effect

• They increase the amount of greenhouse gases

• They remove greenhouse gases from the atmosphere

What is one major source of increased carbon dioxide in the atmosphere?

• Photosynthesis

• Burning fossil fuels

• Ocean evaporation

• Volcanic eruptions

What role do NASA satellites play in understanding the greenhouse effect?

• They cool the Earth's atmosphere

• They measure the gases in the atmosphere

• They remove carbon dioxide from the atmosphere

• They increase the amount of greenhouse gases

Why is the greenhouse effect important for life on Earth?

• It makes the Earth too hot for life

• It keeps the Earth at a temperature suitable for life

• It causes the Earth to freeze

• It has no impact on Earth's temperature

What happens to the Earth's surface after the Sun goes down?

• It continues to warm up

• It cools down and releases heat back into the air

• It remains at the same temperature

• It becomes colder than the atmosphere

What is the main reason Earth is a comfortable place for living things?

• The presence of oceans

• The greenhouse effect

• The distance from the Sun

• The presence of mountains

What is the effect of extra greenhouse gases in the atmosphere?

• They cause the Earth to cool down

• They have no effect on Earth's temperature

• They cause the Earth to warm up

• They make the Earth more reflective