Answer: It is the ratio of solute in a solution to either solvent or total solution.
Explanation:
The last choice on the list is the correct one, for both #2 and #3.
Hight of plants - dependent variable.
amount of water and sunlight - control variables.
Music time - independent variable.
C most of the Earths weather occurs in this layer.
A food handler cannot identify if food has been contaminated with pathogens by its smell, look and taste. The best way to ensure food is pathogen-free is to follow safe food handler’s practices.
