It would be a formal region.
Answer:
Please what is the question
The Southern Indian Ocean I think
Similarities:
- Marine and freshwater ecosystems are water, covering almost 75 percent of the earth's surface.
-The most pervasive problem affecting both freshwater and marine ecosystems is pollution.
-The process of regulating the osmotic pressure on fluids inside an organism is essential to all freshwater and marine species.
Differences:
- Marine ecosystems are more diverse than freshwater ones.
- In marine or seawater, the salinity level, or the concentration of salt is greater, but freshwater is not totally void of it.
- Only 1% of the whole water body on the earth is freshwater, the other 99% is marine water.
Note- I couldn't come up with ones for estuaries, sorry.
The statement that describes how many icons you would expect on a map is Several icons in areas with high population density.
<h3>Where would map icons be found on a map?</h3>
Map icons are used to show the various cultural and other major resources that an area has.
These resources are usually concentrated in the urban areas of a country and so you would find several icons in areas that have high population densities as these are urban areas.
In conclusion, several icons will focus on places with high density.
Find out more on map icons at brainly.com/question/27759455
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