OCEAN BOI'S Flashcards

UNDER DA SEA

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1
Q

Pacific ocean

A

the largest and deepest ocean

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2
Q

Atlantic ocea

A

the second largest

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3
Q

Indian ocean

A

the third largest ocean

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4
Q

Arctic ocean

A

The smallest

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5
Q

Southern ocean

A

The Southern Ocean, also known as the Antarctic Ocean or the Austral Ocean

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6
Q

Salinity

A

the saltiness or amount of salt dissolved in a body of water

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7
Q

surface zone

A

he surface layer of the ocean is known as the epipelagic zone and extends from the surface to 200 meters

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8
Q

Thermocline

A

a steep temperature gradient in a body of water such as a lake, marked by a layer above and below which the water is at different temperatures.

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9
Q

deep zone

A

The deep sea or deep layer is the lowest layer in the ocean, existing below the thermocline and above the seabed, at a depth of 1000 fathoms (1800 m) or more.

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10
Q

water cycle

A

This process is called condensation. Then, the water falls from the sky as rain, snow, sleet or hail. … The water sinks into the surface and also collects into lakes, oceans, or aquifers. It evaporates again and continues the cycle.

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11
Q

Evaporation

A

the process of a substance in a liquid state changing to a gaseous state due to an increase in temperature and/or pressure.

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12
Q

Condensation

A

water which collects as droplets on a cold surface when humid air is in contact with it.

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13
Q

Precipitation

A

the action or process of precipitating a substance from a solution.

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14
Q

continental shelf

A

the area of seabed around a large landmass where the sea is relatively shallow compared with the open ocean. The continental shelf is geologically part of the continental crust.

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15
Q

continental slope

A

the slope between the outer edge of the continental shelf and the deep ocean floor.

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16
Q

continental rise

A

The continental rise is an underwater feature found between the continental slope and the abyssal plain.

17
Q

abyssal plain

A

n underwater plain on the deep ocean floor, usually found at depths between 3,000 metres (9,800 ft) and 6,000 metres (20,000 ft).

18
Q

mid-ocean ridge

A

where two tectonic plates are pulling apart

19
Q

rift valley

A

a large elongated depression with steep walls formed by the downward displacement of a block of the earth’s surface between nearly parallel faults or fault systems.

20
Q

Seamount

A

a submarine mountain.

21
Q

ocean trench

A

Ocean trenches are long, narrow depressions on the seafloor. These chasms are the deepest parts of the ocean—and some of the deepest natural spots on Earth. … In particular, ocean trenches are a feature of convergent plate boundaries, where two or more tectonic plates meet.

22
Q

Plankton

A

Plankton are the diverse collection of organisms that live in large bodies of water and are unable to swim against a current. … They provide a crucial source of food to many large aquatic organisms, such as fish and whales.

23
Q

Nekton

A

aquatic animals that are able to swim and move independently of water currents.

24
Q

Benthos

A

the flora and fauna found on the bottom, or in the bottom sediments, of a sea, lake, or other body of water.

25
Q

desalination

A

Desalination is a process that takes away mineral components from saline water.