Why man - made chemicals are still usedC. Organic methods for producing a rich soilD. The problems with chemicalsParagraphMain IdeaDetail1 - 2BPesticides can kill helpful bacteri a and damage the cause to people and crops. Some pesticides have been prohibited. Crops grown with chemical ...
844.There are various kinds of theme parks, with different parks for almost everything: food, culture, science, cartoons, movies, history, and so on. 主题公园种类繁多,应有尽有:美食、文化、科学、卡通、电影、历史等等...
Korea, Japan and Russia until the 1960s when the widespread use of pesticides and fertilizers, plus a loss of habitat, drove the birds to near extinction.”由此可知,朱鹮并没有遍布全球;同时,由于杀虫剂和化肥的广泛使用外加栖息地的丧失,朱鹮几...
根据最后一段 “ Now speakers with the right audio files are more often being used to warn crops to act when insects are detected but not yet widespread," says Dr. Cocroft. "Unlike chemical pesticides, sound waves leave no dangerous chemicals." (Cocroft 博士说: “现在,有正确音频文件的...
So why are we destroying it everyday with the use of pesticides? It has been proven that pesticides have affects on it's surrounding, although made to improve earths resources, they typically take there negative effect on the environment in time. Pesticides affect more than the environment; ...
In her book Ms.Carson said that these pesticides would harm much more than insects.She explained that these poisons would pollute the environment. "Even if their effects are not immediately observable,they remain for years in the water and the soil,and they become part of the food eaten by ...
are no pesticides and more vitamins and nutrients. Additionally, they can enjoy better taste and aroma. Secondly, growing their own vegetables can save them money on grocery shopping, which is also a reason why people want to have a small vegetable garden. Of course, there are also enough ...
While many people use the terms insecticide and pesticide interchangeably, they are not precisely the same. They have overlapping but not identical uses. However, pesticides and insecticides must be used with caution, because they are made from powerful chemicals which can cause considerable harm if...
Pesticides are any substance that is used and applied to control pests. These pests include insects, weeds, nematodes and etc. In the field, farmers apply pesticides to protect their crops from losses that the pests can make, and make sure that pests do not...
“We gain greater control over what the meat consists of(由...组成), for example, its fat content," Post said in an interview with The Atlantic. Lab- grown meat is also free a the chemicals that are used on farms, such as pesticides(杀虫剂) and growth hormones(激素). Are there oth...