A. colorless and odorless B. bright and colorful C. wilted and dead D. plain and ordinary 相关知识点: 试题来源: 解析 B。原因:“There are lush gardens filled with vibrant flowers of every color imaginable. The blossoms are delicate and fragrant”说明花园里的花充满活力、色彩斑斓且芳香四溢。
Damage to materials, to vegetation, and to the human respiratory system are caused by the acid nature of oxides. small quantities of sulfur oxides can increase illness and mortality. The third type of pollutant is carbon monoxide. Carbon monoxide is a colorless, odorless, tasteless gas against ...
Whether you know it or not, you're breathing argon right now. But there's no need to be alarmed: This colorless, odorless gas makes up a mere 0.94 percent of the air around you, and it's sononreactive that it has no effect on living organisms such as humans. Is argon man made?
Answer and Explanation:1 Argon is a gas at room temperature. It is both odorless and colorless. Argon is classified as a noble gas because it doesn't react with other... Learn more about this topic: Argon | Definition, Properties & Uses ...
Answer and Explanation:1 There are three main traits that define noble gases. First, they are colorless. Secondly, they are odorless. Thirdly, they are monatomic with low... Learn more about this topic: Noble Gases | Definition, List & Properties ...
PULLULAN is a colorless, odorless, neutral, linear polymer material, which is easy to absorb water and expansion and dissolves unlimitedly in water. The dissolving speed is more than twice as fast as sodium alginate and polyethylene. Its solution is not ionized, geltized, and does not crystalli...
Methane is a colorless, odorless,and highly flammable gas, and the main component in natural gas, which is used to generate electricity and heat homes around the world. Is methane gas safe to burn? Natural gas, which primarily consists of methane,is the cleanest burning fossil fuel. ... Ho...
Carbon monoxide (CO):Is colorless, odorless, tasteless, toxic, and flammable. Its usage is not allowed everywhere and is not without its controversyLow-Oxygen Packaging with CO: A Study in Food Politics That Warrants Peer Review (food-safety.com), but carbon monoxide, even at the low levels...
The high abundances of these elements among the interstellar and circumstellar species can be seen as a direct reflection of their cosmic abundances. With the exceptions of the noble gases and the unusual abundance of Fe, these four elements (H, O, C, and N) have the highest cosmic ...
Methane, butane and propane gases are all examples of hydrocarbons, which are organic compounds of carbon and hydrogen. These three gases, together with trace amounts of other gases and another hydrocarbon called ethane, comprise the fossil fuel known as