Answer:
population pyramid is a way to visualize two variables: age and sex. They are used by demographers, who study populations. A population pyramid is a graph that shows the distribution of ages across a population divided down the center between male and female members of the population.
Explanation:
Pay taxes, get a job to stimulate the economy, becoming part of ones community.
Abundant most likely means: more than sufficient without being excessive. plentiful implies a great or rich supply.