There are a lot of other gases in the air. Water vapor(水蒸气) and hydrogen(氢) are two examples, but there are only very, very small amounts of them.(1).What is the meaning of the underlined word "represent" in the third paragraph? A. 代表 B. 分解 C. 提取 D. 组成(2).Which...
Air is a mixture of gases primarily nitrogen and oxygen essential for respiration, whereas the atmosphere is Earth's protective layer of gases, encompassing air, water vapor, and other components.
A. The air is very clean now. B. People don't need to worry about air pollution. C. This device can help improve air quality. D. All harmful gases can be detected by this device. 相关知识点: 试题来源: 解析 C。文章说新设备能检测空气中的有害气体,这有助于提高空气质量。A选项空气现...
What are the gases that constitute the air in a refinery? Which of the following gases would be most likely to experience ideal behaviour at high pressures? a. F_2 b. Ne c. C_2H_6 What is the main gas found in...
Greenhouse gases are the gases in the atmosphere that trap the sun's radiation and cause the atmosphere to become warmer. This also makes temperatures on Earth warmer, making it inhabitable for a vast variety of living things.Answer and Explanation: The greenhouse gas that has the highest ...
which could affect the radiation balance of the earth's atmosphere. Recent measurements indicate that the atmospheric concentrations of these gases are increasing. Incomplete understanding of the sources, sinks, and/or chemical interactions of these gases in the atmosphere makes it difficult to relate ...
In 1992, Mexico city was named as the most polluted city in the world by the United Nations. Since that time, the relocation of factories, phasing out of leaded gasoline, and improvements to public trasportation systems have improved air quality. However, due to high population density and a...
Air pollution is caused by humans introducing chemicals and other materials into the air. These pollutants are dangerous to both the environment and our own health. Air pollution has a wide range of effects, from respiratory disease to climate change. Un
Condensing boilers:If you’re looking for anenergy efficientboiler, a condensing boiler may be a solid option. While condensing boilers do use combustion for heating, they also recover some of the hot gases created during the combustion process. This heat is then pushed to a home’s radiators...
Beyond water and CO2, the other important “natural” greenhouse gases are : methane (CH4), which is nothing else than the cooking gas we use in our stoves, Nitous oxyde (N2O), the scholarly name for….. laughing gas (which is not so much amusing here), ...