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The wave shown on the electromagnetic spectrum disturb the medium it passes through a)different frequency. b)the same frequency .

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.

Which of the following is a physical property flammability heat of combustion solubility and toxicity