The answer is B. physical because it just is. A physical map shows elevation or like mountain ranges and hills and plateaus
Explanation:
Using a few inexpensive, energy efficient measures can reduce your energy bill and, at the same time, reduce air pollution. Heating and cooling systems use more energy than any other systems in American homes. Natural gas and electricity are used to heat most American homes, electricity to cool almost all.
it is more likely for city states to form because it is very hard for one person to control all this separated land
a lot.
european countries that do not use the euro, though include bulgaria, czech republic, denmark, hungary, croatia, poland, romania, sweden, and the uk. cmon, quick google search got me that.
