Which day of the year has the shortest amount of daylight hours? A. autumnal equinox
B. vernal equinox
C. summer solstice
D. winter solstice​

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.

Compare sympathetic and parasympathetic

If a 20.0ml test tube measures 15.0cm, what is the length in meters?