About 200 mya the dinosaurs suddenly disappeared from the earth. (True/False)

Answer

**Step-by-Step Solution:**

1. **Understanding the Timeline**: The question states that dinosaurs disappeared about 200 million years ago. We need to clarify the timeline of dinosaur existence and extinction.

2. **Duration of Dinosaur Existence**: Dinosaurs first appeared approximately 230 million years ago during the Triassic period and thrived for about 165 million years.

3. **Correct Extinction Period**: Dinosaurs went extinct around 65 million years ago, at the end of the Cretaceous period. This marks the end of the age of dinosaurs.

4. **Conclusion**: Since dinosaurs disappeared about 65 million years ago and not 200 million years ago, the statement in the question is false.

5. **Final Answer**: Therefore, the statement "About 200 mya the dinosaurs suddenly disappeared from the earth" is **False**.

---