Environmental Protection Tip of the Day – September 19: Reward for participation, plus 5 more points for answering 3 questions correctly
Thread Content
This post was last edited by wamj6566 on 2016-9-19 07:40. Multiple-choice question: Regarding the destruction of the ozone layer, which statement is correct? ( ) A. It is caused by humans’ use of refrigerators and air conditioners, which release large amounts of sulfur oxides and nitrogen oxides. B. Ozone is mainly found in the troposphere near the Earth’s surface, and it can be easily damaged by human activities. C. The appearance of ozone layer holes will lead to changes in precipitation and humidity levels in various regions around the world. D. The main measure to protect the ozone layer is to gradually eliminate the emission of substances that damage it. D
D. The main measure to protect the ozone layer is to phase out the emission of ozone-depleting substances.
D. The main measure to protect the ozone layer is to phase out the emission of ozone-depleting substances.