Because it shows the ages of the population, so we can see the parts of the place with the population that can and can't work.
Now, the way these maps show social information is: because they point out the demographical distribution about a specific sub-group in the population, its age, and its growth.
And finally, the way these maps provide environmental information is: because they allow us to see the environment of certain zones inside the map territory.
Answer:
What are the specifics of the app that you are looking for?
Explanation:
I might be able to help.
Background images can be used as visuals for visual learners. You can really use them to your advantage and really use them to explain your point. Say your talking about deforestation, you could put up a picture of a beautiful jungle and a picture of a deforested jungle to prove your point
