Answer:
There are no options to this question, however, the answer is:
TURBIDITY
Step-by-step explanation:
Algal bloom is a term used to describe the excessive and rapid growth of algae species on a water surface. It is caused by the pollution of a water body with nutrients, in a process called EUTROPHICATION.
Asides the low oxygen effect of this algal blooming on a water body, it can also form a cloudiness on the surface of the water body. This cloudiness causes the water to be unclear in a process that is called TURBIDITY. In other words, the water that is affected by algal bloom is said to be "TURBID" and can reduce the penetration of sunlight.