Oceans

Sea

Convection currents

Divergent plate boundary

Convergent plate boundary

Transform plate boundary

Hot Spot

Guyot

Abyssal Plain

Continental shelf

Continental slope

Submarine canyon

Abyssal hill

Seamount

Oceanic trench

Thermocline

Salinity

Thermohaline circulation

La Niña

El Niño

Overfishing

Biotic

Abiotic

Eutrophication

Red Tides

Currents

Exclusive Economic Zone

Territorial waters

Polyp

Fringing reef

Barrier reef

Atoll

Mangroves

Drift nets

Bottom drag nets

Dynamite fishing

Cyanide fishing