Where is oil typically found in the u. s. and globally?

The map above shows where people live in the united states. areas that are darker blue are areas where people live close together. areas that are lighter colors are places where people live farther apart. as a geographer, if you were to study where people live and why they choose to live in these places, which of the six essential elements of geography would you be using?

In which horizon of soil profile is prevent material usually found

The creation of the european union has had all of the following effects except