Activity%201:%20Causes%20of%20Human%20Population%20Growth

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Activity 1 Causes of Human Population Growth
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Directions

• Using the information, respond to the questions
  in your guided notes concerning the causes of
  human population growth.

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Causes of Rapid Population Increase

• There are many factors that can affect population
  size
• When it refers to the human population, there are
  3 important causes of human population growth

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Reason 1 Deaths vs. Births

• More people are being born than dying
• Just this year
• 47 million people were born
• 19 million people died

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Research in the areas of diseases such as AIDS
has allowed for individuals to be able to live
longer and healthier lives due to stronger and
better medications
Fewer infants are dying at birth due to new
medical practices and technology
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Reason 2 Life Expectancy

• Longer life expectancies
• Meaning People are living longer
• Average life expectancy worldwide
• 80 years
• In the U.S.
• 76 years

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• Doctors have switched from treating diseases to
  preventing diseases.
• This means that we are trying to keep people from
  getting sick instead of waiting until they get
  sick to treat them.

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Reason 3 Technology

• New advancements in technology
• Meaning that we have created new and better
  technology which allows us to continue to live
  and develop
• Some of this new technology includes
• Genetic engineering
• We are able to grow and manage food in order to
  be able to make it last longer and produce more
  of it
• Medical technology

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• New technology has allowed us to grow crops, such
  as corn, in larger amounts and at a faster rate.