Read the statements carefully then write the letter of the correct answer on the each number. 1. It is a blanket of air that protects the earth from ultraviolet radiation and meteors C. Water vapor A Atmospher B. Clouds Which of the following is NOT a major component of the atmosphere? 2. A. Argon B. Nitrogen 3. What is the ozone layer's function? C. Oxygen A. Keep oxygen in B. Allow meteors to get to Earth C. Allow Ultraviolet (UV) rays to get to Earth D. Block Ultraviolet (UV) rays from getting to Earth 4. What is the correct sequence of the layers of the atmosphere from the ground A. Troposphere-Stratosphere - Mesosphare-Thermosphere-Exos B. Exosphere- Thermosphere-Mesosphere-Stratosphere-Tropos C. Troposphere-Stratosphere-Thermosphere-Mesosphere-Exce D. Exosphere-Mesosphere - Thermosphere-Stratosphere-Tropo 5. What is the process of trapping the sun's heat in the atmosphere that keeps enough to support life? A. Climate change B. Carbon emission C. Global warming D. Greenhouse effect 6. Why is the increase of greenhouse gases a big issue? Because it A. leads to more factories. B. can lead to a major increase in greenhouses. C. causes a major decrease in human population. D. causes climate change and Increase in global temperature. 7. What do we call the gradual rise in the atmospheric temperature due to th greenhouse gases? A. Climate change B. Global warming C. Ozone depletion D. Greenhouse effect 8. What might happen if the greenhouse affect did not exist? A. The Earth would not have an atmosphere. B. It would be too cold for humans to survive on Earth. C. The Earth's temperature would be more comfortable. D. The Sun's rays would never reach the surface of the Earth. 9. Which of these sets of items produce CFCs? A. Cars and factories B. Cardboard and refrigerant 10. Which is the most potent greenhouse gas in terms of absorbing infra D. Spray cans and A. Methane gas (CH₂) B. Nitrous Oxide (N₂O) C. Spray cans and C. Carbon Dioxide D. Chlorofluorocan​