Groundwater is usually clear and void of __________.

Groundwater is typically considered clear and low in turbidity, which refers to the clarity of water and indicates the presence of suspended particles. When we say that groundwater is often void of bacteria, it reflects the fact that groundwater, particularly when it is drawn from deep aquifers, tends to have lower levels of microbial contamination compared to surface waters. This is due to natural filtration processes as water percolates through soil and rock layers, which can help to remove many microorganisms.

While groundwater can indeed contain minerals, salts, and organic matter depending on the geology of the area and the surrounding environment, the absence of bacteria is what distinguishes clear groundwater in many cases, especially in terms of quality for drinking purposes. Thus, the most fitting choice in the context of this question highlights groundwater's relative purity from biological contaminants, which is a critical consideration for its use in potable water supply.