A is the answer.
None of the world's largest cities are in Western Europe. Moscow is not in western Europe either.
Regions that depend on commercial agriculture
I think the correct answer from the choices listed above is the second option. Global information systems (GIS) can be used to create emergency plans in the event of natural disasters.
Hope this answers the question.
Have a nice day.
I would think that the layer of sandstone would be B. Younger than 300 million years because it's above the layer of limestone.