Any chemical or substance used to kill or inhibit the growth of pests that damage or interfere with the growth of crops, shrubs, tress, timber and other vegetation useful to humans.
In biology, any biological entity or processes, or community whose characteristics show the presence of specific environmental conditions. 2. In chemistry, a substance that shows a visible change, ...
The wearing away of land surface by wind or water, intensified by land-clearing practices related to farming, residential or industrial development, road building, or logging.
1 用語