Podcast
Questions and Answers
What is the maximum percentage of total oceanic Net Primary Productivity (NPP) attributed to the continental shelf?
What is the maximum percentage of total oceanic Net Primary Productivity (NPP) attributed to the continental shelf?
What characterizes the continental slope?
What characterizes the continental slope?
How does the presence of waves and river mouths affect the continental shelf?
How does the presence of waves and river mouths affect the continental shelf?
What is the primary feature that marks the transition from the continental slope to the deepest part of the ocean?
What is the primary feature that marks the transition from the continental slope to the deepest part of the ocean?
Signup and view all the answers
What is mainly transported by rivers and contributes to the nutrient levels on the continental shelf?
What is mainly transported by rivers and contributes to the nutrient levels on the continental shelf?
Signup and view all the answers
What geological process primarily leads to the formation of mid-ocean ridges?
What geological process primarily leads to the formation of mid-ocean ridges?
Signup and view all the answers
How do the characteristics of fast spreading ridges differ from slow spreading ridges?
How do the characteristics of fast spreading ridges differ from slow spreading ridges?
Signup and view all the answers
What is the significance of hydrothermal vents in mid-ocean ridge ecosystems?
What is the significance of hydrothermal vents in mid-ocean ridge ecosystems?
Signup and view all the answers
What type of lava is primarily associated with eruptions at mid-ocean ridges?
What type of lava is primarily associated with eruptions at mid-ocean ridges?
Signup and view all the answers
Which organisms rely on chemical energy from hydrothermal vents for their survival?
Which organisms rely on chemical energy from hydrothermal vents for their survival?
Signup and view all the answers
What geological process is primarily responsible for the formation of ocean trenches?
What geological process is primarily responsible for the formation of ocean trenches?
Signup and view all the answers
What characteristic of ocean trenches distinguishes them from other ocean features?
What characteristic of ocean trenches distinguishes them from other ocean features?
Signup and view all the answers
Which adaptation helps organisms to survive in the extreme conditions of ocean trenches?
Which adaptation helps organisms to survive in the extreme conditions of ocean trenches?
Signup and view all the answers
What are guyots?
What are guyots?
Signup and view all the answers
What is the primary difference between the depths and sediments of the Atlantic and Pacific oceans?
What is the primary difference between the depths and sediments of the Atlantic and Pacific oceans?
Signup and view all the answers
Which process allows certain bacteria in ocean trenches to produce organic nutrients?
Which process allows certain bacteria in ocean trenches to produce organic nutrients?
Signup and view all the answers
What is the approximate depth of the Challenger Deep in the Mariana Trench?
What is the approximate depth of the Challenger Deep in the Mariana Trench?
Signup and view all the answers
The abyssal plains make up what fraction of the Earth's surface?
The abyssal plains make up what fraction of the Earth's surface?
Signup and view all the answers
What type of rock is predominantly found on the oceanic side of a trench?
What type of rock is predominantly found on the oceanic side of a trench?
Signup and view all the answers
What geological feature marks the center of slowly spreading ridges on the ocean floor?
What geological feature marks the center of slowly spreading ridges on the ocean floor?
Signup and view all the answers