human
What are some good questions about the natural world?
assistant
1. What is the fastest animal in the ocean?
2. How many species of mammals live on Earth?
3. Why do we have a sense of smell?
4. How did life first appear on Earth?
5. What is the oldest fossil found on Earth?
6. How many stars are there in the Milky Way galaxy?
7. How many different types of trees are there in the world?
8. How does photosynthesis work?
9. How long does it take for light to reach Earth from the sun?
10. How many legs do insects have?