Can matter every be destroyed? Why or why not?

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.

In which of these cases are the two wave points considered to be in phase with each other?

Ineed this asap part i: scientific method what is the difference between science and pseudoscience? what is the scientific method?