Current labels use CAUTION, WARNING and DANGER to inform the user. In the experiment, the researchers used two other symbol systems: circles in traffic light colors and skull intensity symbols.

Thankfully the symbols they use are (mostly) universal, so once you've learned what each represents (as we explain below) you shouldn't have any problems no matter what you find in your laundry basket ...

Article subjects are automatically applied from the ACS Subject Taxonomy and describe the scientific concepts and themes of the article. Despite the effectiveness of biofertilizers, when applied ...