the number of old and young dependents who don't work compared with the working-age population

the study of human populations, including how they change due to births, deaths, aging and migration

the average age that a person in a given population can expect to live

the total fertility rate needed for a population to replace itself

the average number of children a woman in a given population will have in her lifetime

rain that can damage the environment because it contains acid from factory smoke and car exhaust

Question Image

a form of energy that comes from nuclear reactions (no smell or taste, but very harmful)

a river and all the streams that flow into it

pollution that starts in one country and crosses boundaries into other countries

Question Image

Treaty of Versailles

Teachers: Create FREE classroom games with your questions Click for more info!
©2007-2024 Review Game Zone | About | Privacy | Contact | Terms | Site Map