1. Activity 1: Causes of Human Population Growth

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

3. 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

4. Reason 1: Deaths vs. Births
More people are being born than dying
Just this year
47 million people were born
19 million people died

5. Why are there more births than deaths?
1. Research in the areas of diseases such as AIDS has allowed for individuals to live despite a disease
This is due to stronger and better medications
2. Fewer infants are dying at birth due to new medical practices and technology

6. Reason 2: Life Expectancy
Longer life expectancies
Meaning: People are living longer
Average life expectancy worldwide
80 years
In the U.S.
76 years

7. Why are people living longer?
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.

8. Reason 3: Technology Some of this new technology includes
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

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