How can a population pyramid be used to show trends in a country's age, birth rate, and gender preference?

Where does the availability of water pose the greatest problem

What statement about charlemagne is not true? a. charlemagne's empire collapsed during his rule b. charlemagne sent missionaries throughout europe c. charlemagne encouraged the arts and education d. charlemagne ruled much of western europe a. charlemagne's empire collapsed during his rule

How can studying economics us make better choices about how to use scare resources