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:
Human migration is the movement of people from one place to another with the intention of settling in the new location. When large numbers of people relocate, historians ask questions about why these people moved and what impacts their movements had.
Dividing islands north and South Korea
Answer:
c. Graded beds are evidence of a decrease in current velocity during deposition whereby coarse sediments settle out first, followed by finer sediments as the velocity decreases over time.
Explanation: