Qualitative analytic methods are needed to determine THE IDENTITY OF THE POISON USED IN A MURDER. Quantitative analytic methods are used to identify unknown materials such as chemical compounds, poisons, etc. In a criminal investigation case, qualitative analytic method can be used to identify the particular poison that was used to murder a victim. Qualitative methods do not involve numeric data or figures while quantitative methods typically has to do with the quantity of a substance that is involved in a particular situation.This is basic difference between the two methods.
The factor that has the most greatest importance in determining the characteristics of an aquatic ecosystem will be water depth. The depth will determine the sunlight that the ecosystem will get. The answer will be B.
