Their placement because if they're in the less economically developed part then they would have a greater effect but if they're in the more economically developed part better shops are accessible.
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.
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Answer: Antarctica
Explanation: According to NOAA.com "What we call the ozone hole is a thinning of the protective ozone layer in the stratosphere (the upper layer of Earth's atmosphere) above Antarctica that begins every September. Chlorine and bromine derived from human-produced compounds are released from reactions on high-altitude polar clouds."