Question

What is the main process by which greenhouse gases cause global warming?

• A. Reflect sunlight back to space
• B. Absorb and re-radiate heat back to Earth
• C. Increase ozone concentration in the stratosphere
• D. Increase carbon absorption by plants

Answer 1

Answer:

B. Absorb and re-radiate heat back to Earth

• Greenhouse gases trap infrared heat emitted from Earth’s surface and re-radiate it, causing the greenhouse effect that warms the planet.