Which group of gases trap heat in the atmosphere and include carbon dioxide, methane, nitrous oxide, and fluorinated gases?

Which group of gases trap heat in the atmosphere and include carbon dioxide, methane, nitrous oxide, and fluorinated gases?

• A. Ozone Layer
• B. Greenhouse Gases
• C. Air Pollution
• D. Toxins

Answer: (B)

Gases that trap heat in the atmosphere are called greenhouse gases. This group includes carbon dioxide, methane, nitrous oxide, and fluorinated gases. They work by absorbing infrared radiation coming from Earth and then re-emitting it in all directions, including back toward the surface, which warms the lower atmosphere and the planet overall. Human activities—like burning fossil fuels, agriculture and manure management, and various industrial processes—increase these gases, boosting the greenhouse effect and climate warming. The ozone layer is a protective shield high in the atmosphere and acts differently, not as a heat-trapping group. Air pollution is a broad term for harmful particles and gases, not specifically the heat-absorbing group described here. Toxins are harmful substances, not a climate-system category.

Gases that trap heat in the atmosphere are called greenhouse gases. This group includes carbon dioxide, methane, nitrous oxide, and fluorinated gases. They work by absorbing infrared radiation coming from Earth and then re-emitting it in all directions, including back toward the surface, which warms the lower atmosphere and the planet overall. Human activities—like burning fossil fuels, agriculture and manure management, and various industrial processes—increase these gases, boosting the greenhouse effect and climate warming. The ozone layer is a protective shield high in the atmosphere and acts differently, not as a heat-trapping group. Air pollution is a broad term for harmful particles and gases, not specifically the heat-absorbing group described here. Toxins are harmful substances, not a climate-system category.