UC知道200分 加分！~ 英语写作 一些小问题
来源：百度知道 编辑：UC知道 时间：2024/06/30 08:22:06
In what form is it sold and how is it introduced into the environment? (2个点)
What is its chemical formula and molecular structure (provide a diagram if possible) (2个点)
When was it first used, and is it still used today? (3个点)
Dose it have any long-term or short-term effects on the environment? (3个点)
Dose it bioaccumulate? Explain why or how. (2个点)
How is its use controlled? (2个点)
Are there any alternatives to it? (2个点）
要求：
每个题需要2个以上的piont 每个点需要一两句话就可以了
不能直接在网上copy 用自己的语言~
字数可以不用太多 但是要能看出来提到的点够
写得好有加分
在线等~
急~
谢谢~
在哪着的资料 的网站地址也附上来把~ 谢谢！
Fungicide is a kind of pesticide which is used to kill fungi and oomycetes (Water molds - a group of filamentous flora, physically similar to fungi), it also control the spread of fungi.
It always sold in powdered form and it about 90% of the concentration, it is really toxic, however, in agriculture use, and this is an oil-based Aerosol liquid product as general use. To use it, spray hiding places and trails from a distance of 20-30 cm, until surface appears slightly moist. The residual control for crawling insects can last for up to 4 weeks.
Structure:
Molecular formula: C18H19NO4
Molecular weight: 313.4
It has been invented by Prof. Douglas at University of California, Davis in 1979. It proved to be one of the most effective products for insect killing. Therefore, as the efficiency it has, it still used today.
Since the fungicide has a really light concentration in agriculture use, it has little effects on the environment as people test