What two things are required for fossilization to occur:
burial and water
water and hard parts
hard parts and burial
burial and dissolved minerals

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 is the atomic number of a nucleus changed by alpha decay

Which substance is a steroid? cholesterol fatty acid monosaccharide trans fat