Concept:Turbidity is an aquatic condition, not a land-based environmental factor.Explanation:Terrestrial habitats depend on factors like temperature, sunlight, and humidity.Turbidity describes how cloudy or muddy water is.Because turbidity relates to water bodies, it belongs to aquatic habitats, not terrestrial ones.Therefore, among the options, turbidity is the factor that is not considered in a terrestrial habitat.Answer:D. Turbidity