Which of the following is not one of the six essential elements of geography?
a.
human systems
b.
movement
c.
places and regions
d.
environment and society

How many countries have portuguese as a national language?

Explore the ways that boundaries influence identity, interaction and exchange. things to consider: what is the race/ethnicity. how easy is it to interact/trade with others.

As water is cooled from 4 c to 0 c its density