“The insecticide most widely used for house spraying has been DDT, which has continued to be recommended for this purpose long after it was banned for agricultural use in the USA and many other countries… Arguments about DDT applied to field crops accumulating in food chains are considered ina...
DDT was developed during the second World War to control a wide variety of insects. It was hailed as the "miracle insecticide" and quickly became one of the most widely used pesticides in the world to control insects on agricultural
Bilibili is widely seen as a place for young people, as most uploaders (上传者) and audiences (观众) are very young. However, Jiang Minci, 89, has quickly become very famous in this young and fashionable place. She is older than any other uploader on Bilibili and h...