Artifacts from the Bottom of the Mariana Trench - Test
- 1. What is the deepest part of the Mariana Trench called?
A) Challenger Deep
B) Java Trench
C) Hadal Zone
D) Puerto Rico Trench
- 2. Which vehicle was used to first reach the bottom of the Mariana Trench in 1960?
A) Deepsea Challenger
B) Alvin
C) DSV Limiting Factor
D) Bathyscaphe Trieste
- 3. What type of fish was discovered in the Mariana Trench?
A) Pufferfish
B) Deep-sea snailfish
C) Clownfish
D) Anglerfish
- 4. What is a primary concern regarding debris at the trench's bottom?
A) Ocean pollution
B) Undersea earthquakes
C) Fragile ecosystems
D) Thermal vents
- 5. What is a notable feature of the Mariana Trench's ecosystem?
A) Plentiful sunlight
B) High pressure environment
C) Rich in nutrients
D) High temperatures
- 6. What year did Jacques Piccard and Don Walsh first reach the trench's bottom?
A) 1955
B) 1980
C) 1960
D) 1975
- 7. What percentage of the ocean's depths remains unexplored?
A) 60%
B) 80%
C) 90%
D) 50%
- 8. How is the Mariana Trench formed geologically?
A) Glacial carving
B) Seafloor spreading
C) Subduction zone
D) Volcanic eruption
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