The Mountains Below Us (And Other Deep Sea Treasures) | Compilation

What is marine snow primarily composed of?

• Mineral deposits

• Ice crystals

• Organic matter

• Salt particles

How does marine snow contribute to the carbon cycle?

• By storing carbon in deep-sea sediments

• By providing energy for hydrothermal vents

• By releasing carbon dioxide into the atmosphere

• By increasing ocean acidity

What did Marie Tharp discover that changed our understanding of the ocean floor?

• The existence of hydrothermal vents

• The Lost City hydrothermal field

• The mid-Atlantic ridge

• The presence of marine snow

What geological feature is associated with the mid-Atlantic ridge?

• A coral reef

• A volcanic island

• A deep ocean trench

• A rift valley

What makes the Lost City hydrothermal field unique compared to other vents?

• It forms through serpentinization

• It is the youngest vent field

• It has black smoker chimneys

• It is located in the Pacific Ocean

What is a significant chemical reaction occurring at the Lost City?

• Release of sulfur dioxide

• Creation of calcium carbonate

• Production of methane gas

• Formation of iron sulfide

What is unique about the scaly foot snail's shell?

• It is transparent

• It is bioluminescent

• It is made of calcium carbonate

• It is coated with iron sulfide

Why is the scaly foot snail considered endangered?

• Because of climate change

• Because of habitat destruction from mining

• Due to overfishing

• Due to ocean acidification

What are manganese nodules primarily composed of?

• Manganese and iron

• Copper and zinc

• Silicon dioxide

• Calcium carbonate

What is a potential environmental concern regarding deep-sea mining?

• Increased volcanic activity

• Increased ocean temperatures

• Disruption of seafloor ecosystems

• Depletion of fish populations