What are the three domains of life?
Plantae, Animalia, and Fungi
class, kingdom, and phylum
Eubacteria, family, and Eukarya
Bacteria, Archaea, and Eukarya

Nitrogen (n), phosphorus (p), and potassium (k) are the main nutrients in plant fertilizers. according to an industry convention, the numbers on the label refer to the mass percents of n, p2o5, and k2o, in that order. calculate the n: p: k ratio of a 30: 10: 10 fertilizer in terms of moles of each element, and express it as x: y: 1.0.

How do you know when a chemical reaction has occurred

What type of electromagnetic waves does the human eye see as the colors red blue or green a visible light waves b radio waves c infrared waves d microwaves