5 guess the words - examples What's the chemical symbol for oxygen?

Question 5 guess the words ?

1. What's the chemical symbol for oxygen?
2. In what year did the Berlin Wall fall?
3. Name a famous ancient wonder that no longer exists?
4. What's the process by which plants make their own food using sunlight?
5. Who is known as the "Father of Computer Science"?

The answer will be contained in the video later

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