All Subjects
Light
Practice Quizzes
AP Human Geography
Unit 2 – Population and Migration
Topic 2.1
Why has the United States' population pyramid become more columnar over time?
Aging baby boomers and lower birth rates have slowed population growth.
Increased immigration from younger populations.
High taxes discourage larger families.
The government encourages family planning methods like contraception use.
Related content
Practice quizzes
Practice this subject
Practice this unit
Practice this topic
Study guides (1)
AP Human Geography - 2.1 Population & Migration
Key terms
Population Pyramid
About Us
About Fiveable
Blog
Careers
Testimonials
Code of Conduct
Terms of Use
Privacy Policy
CCPA Privacy Policy
Resources
Cram Mode
AP Score Calculators
Study Guides
Practice Quizzes
Glossary
Crisis Text Line
Request a Feature
Report an Issue
Stay Connected
© 2024 Fiveable Inc. All rights reserved.
AP® and SAT® are trademarks registered by the College Board, which is not affiliated with, and does not endorse this website.
About Us
About Fiveable
Blog
Careers
Testimonials
Code of Conduct
Terms of Use
Privacy Policy
CCPA Privacy Policy
Resources
Cram Mode
AP Score Calculators
Study Guides
Practice Quizzes
Glossary
Crisis Text Line
Request a Feature
Report an Issue
© 2024 Fiveable Inc. All rights reserved.
AP® and SAT® are trademarks registered by the College Board, which is not affiliated with, and does not endorse this website.
Back
Practice Quiz
Guides
Glossary
Guides
Glossary
Next