True
False
True
False
Continental slopes
Continental shelves
Trenches
On continental slopes
Along shore lines where sunlight and oxygen are plentiful
Near hydrothermal vents in the absence of oxygen and sunlight
Nekton
Plankton
Benthos
Diatoms
Benthos
Nekton
Corals
Plankton
Trench
Abyssal plain
Continental shelf
Continental slope
Trench
Continental slope
Mid-ocean ridge
Energy
Carbon dioxide
Nitrogen
Ozone
Reducing land pollution
Education
All listed options
International treaties
Silt
Placer deposits
Benthos
Producer
Roadway
Point source
Trench
Photosynthesis
Chemosynthesis
Consumers
Producers
Plankton
Benthos
Food chain
Ecosystem
Rift zone
Continental shelf
Estuaries
Swamps
Impoundments
Plankton
Nekton
Benthos
Seal
Plankton
Whale
Fish
Continental Slope
Abyssal Plain
Continental Shelf
Ocean Trench
Mid-Ocean Ridge
Mid-Ocean Ridge
Abyssal Plain
Continental Shelf
Ocean Trench
Continental Slope
Abyssal Plain
Ocean Trench
Mid-Ocean Ridge
Continental Slope
Continental Shelf
Ocean Trench
Mid-Ocean Ridge
Continental Slope
Abyssal Plain
Continental Shelf
Ocean Trench
Mid-Ocean Ridge
Food chain
An underwater race
Food web
Dichotomous key