Which beaker is identified for containing natural water based on the conductivity test?

The correct identification of Beaker C as containing natural water, based on conductivity testing, is tied to the principles of conductivity and the characteristics of water sources. Natural water typically has a certain level of dissolved ions, such as salts and minerals, which contribute to its conductivity. This attribute allows for electrical current to pass through the water, reflecting its ionic content.

In the context of this multiple-choice question, Beaker C likely displayed a conductivity level that is consistent with what is expected in natural water. Natural sources, such as rivers, lakes, or groundwater, tend to have a moderate level of dissolved solids compared to other types of water. If Beaker C was indicated to have higher conductivity compared to the others—let's say Beakers A, B, and D demonstrated significantly lower conductivity—then it aligns with the typical findings for water that has naturally occurring minerals and salts.

Conversely, Beakers A, B, and D might contain distilled or deionized water, which has very low conductivity due to the absence of dissolved ions, or they may contain water with much higher concentrations of pollutants or contaminants, influencing conductivity readings differently. Thus, Beaker C's characteristic conductivity makes it consistent with the profile of natural water, validating it as the correct