This lesson provides an introduction to the use of coal as an energy source. Topics include the history of coal usage, applications of coal as an energy source, and major suppliers of coal (the United States). There is...
This lesson discusses population growth, both in the United States and in the world. Topics include factors that influence population growth, such as government policy, religion, education or economic levels, energy use...
This lesson discusses the question 'What is a mineral?' in the context of the guessing game 'Animal, Vegetable, or Mineral?'. It introduces a definition of the term, discusses the criteria used in the definition, and...
One of the primary tools that demographers use to understand population is the age structure diagram, a graphic representation that shows the distribution by ages of females and males within a certain population. This...
This lesson reinforces the idea that Earth's population, including the population of the United States, is growing at a dramatic rate. It discusses some of the basics of demography, the study of population and its...
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