1. Which ocean is the Mariana Trench located in?

2. What is the approximate depth of the Mariana Trench?

3. The Mariana Trench is the deepest point on Earth. True or False?

4. The Mariana Trench is located near which group of islands?

5. What is the name of the deepest part of the Mariana Trench?

6. Who was the first person to reach the bottom of the Mariana Trench?

7. When was the first manned descent to the bottom of the Mariana Trench?

8. The Mariana Trench is formed by the collision of which two tectonic plates?

9. Which country has jurisdiction over the Mariana Trench?

10. What is the average temperature at the bottom of the Mariana Trench?

11. Which of the following is NOT a characteristic of the Mariana Trench ecosystem?

12. What is the primary source of food for organisms in the Mariana Trench?

13. How many times could Mount Everest, the highest peak on land, fit inside the Mariana Trench?

14. The Mariana Trench is located in the Ring of Fire, which is known for its high seismic activity. True or False?

15. What type of rock is most commonly found in the Mariana Trench?

16. How long is the Mariana Trench?

17. Which research vessel made the latest scientific exploration of the Mariana Trench in 2019?

18. The Mariana Trench was formed as a result of:

19. How many species of fish have been discovered in the Mariana Trench?

20. Which of the following is NOT a current threat to the Mariana Trench ecosystem?