human
What are the most interesting facts about the world we live in?
assistant
1. The Earth is a sphere, and it rotates on its axis at approximately 1,040 miles per hour (1,760 km/h).
2. The average temperature of the Earth's atmosphere is around 59°F (15°C).
3. There are over 7 billion people living on Earth today.
4. The human population is expected to reach 9.5 billion by 2050.
5. The first humans lived in Africa around 200,000 years ago.
6. The oldest known fossils date back 3.8 billion years.
7. The Milky Way galaxy contains over 100 billion stars.
8. The universe is expanding at an accelerating rate.