________ is the measure of relative clarity of a liquid.

Turbidity

The correct answer is option 1. Turbidity.

The measure of relative clarity of a liquid is Turbidity.

Turbidity refers to the cloudiness or haziness of a liquid caused by suspended solids or particulate matter that scatter or absorb light, reducing the transparency of the liquid. It is commonly measured in nephelometric turbidity units (NTU) and is an important parameter in assessing the quality of water for various purposes, such as drinking water, environmental monitoring, and industrial processes. High turbidity levels in water can indicate the presence of contaminants and affect its suitability for use.