Evergreen
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People today are taller, on average, than their ancestors 100 years ago. This is true for every country in the world.
The data shown below is based on a global study. It reports mean height for adults by year of birth, from 1896 to 1996; in other words, people who had reached their eighteenth birthday from 1914 to 2014.
Please look at the graph and discuss it with your teacher.
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Discussion
Why do you think people are taller today than they were 100 years ago?
Do you think there is a biological limit to how tall people can get?
Name some advantages of being tall.