Vito was having a picnic by a lake with his classmates. he threw a rock into the lake and watched i sink his friend, romeo, threw his apple in the lake and watched it float. what is the best explanation for why the rock sank and the apple floated?

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.

What material does not melt at any temperature

Can someone me with 6 to 10 plz this is for masteries test.