increased turbidity (cloudiness) can cause what in aquatic ecosystems?\neutrophication\na reduction in…

Brief Explanations:

In aquatic ecosystems, increased turbidity (cloudiness) means more particles are suspended in the water. These particles scatter and absorb light. As a result, less sunlight can penetrate the water column. Sunlight is crucial for aquatic plants (like phytoplankton and submerged aquatic vegetation) as they need it for photosynthesis. A reduction in sunlight can lead to decreased growth of these plants, which in turn affects the entire food web in the aquatic ecosystem (e.g., herbivores that feed on these plants may have less food, and this cascades up to higher trophic levels). Eutrophication is mainly caused by excessive nutrient (like nitrogen and phosphorus) input leading to algal blooms and oxygen depletion, not directly by turbidity - though in some cases, there can be indirect links (but the direct and more immediate effect of increased turbidity is light reduction).

Answer:

A reduction in sunlight