Algal blooms can result in a cloudiness called , which can reduce the penetration of sunlight.

There are no options to this question, however, the answer is:

TURBIDITY

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.

Indonesia has the highest Population Density (1045.7935 people per Km square)

Ghana has the least Population Density (77.20611 people per Kilometre Square)

Step-by-step explanation:

Population density is the per unit value of People living in a particular geographical area to the land mass.

Population density = Total Population / Land mass per square

Indonesia =203,479,000/1,904,569

=1045.7935people per Km square

Denmark= 5,248,000/42,077

=124.7237 people per Kilometre Square

Ghana=18,339,000/237,533

=77.20611 people per Kilometre Square