Magma from a reservoir deep in the Earths crust rises to the surface.
Answer: Earth's rotation
Explanation: As the earth rotates around its own axis and revolves around the Sun different parts of the earth get different times and different seasons when it's winter in the northern hemisphere it's summer in the southern hemisphere
When volcanoes erupt, they emit a mixture of gases and particles into the air. Some of them, such as ash and sulphur dioxide, have a cooling effect, because they (or the substances they cause) reflect sunlight away from theearth
Religion because it is important nowadays
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.