Find and correct the mistake in each sentence about the article. Rewrite them carefully.
1. The study looked at 20-year-old men and women and how their height changed on average in 100 years.
2. The information came from over 1,500 sources.
3. In 1914, Dutch men and women were the tallest in the world.
4. In 2014, Latvian men were the tallest in the world.
5. The tallest women now come from South Korea.
6. The shortest people in the world live in Uganda and Niger.
7. People all over the world have grown taller on average in the last ten years.
8. In some countries, such as Guatemala, they are getting shorter again.
