What type of rock forms when rocks melt, cool, and then harden? A. Igneous
B. Metamorphic
C. Shale
D. Sedimentary

Nonpoint source pollution is difficult to control because it

Use this information to determine the number of calends electrons in the atoms. which of the following correctly compares the stability of the two atoms? a) both are unreactive b) both are highly reactive c) a is unreactive and d is reactive d) a is reactive and d is unreactive

Which describes fat? a: a carbohydrate that produces energy b: a nucleic acid that directs cell function c: a lipid that stores energy d: a protein that speeds up a chemical reaction