bacteria Flashcards

1
Q

pacific ocean

A

the pacific ocean is the deepest and largest

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2
Q

Atlantic ocean

A

covers 20% of earths surface

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3
Q

Indian ocean

A

it holds 40% of the worlds oil

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4
Q

arctic ocean

A

is the smallest ocean and the shallowest

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5
Q

southern ocean

A

during winter half the ocean is covered by ice

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6
Q

Salinity

A

the measure of salt dissolved in water

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7
Q

surface zone

A

the top warm layer of the ocean that the sun hits.

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8
Q

Thermocline

A

the part of the ocean ware the temperature drops the fastest

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9
Q

deep zone

A

a huge part of he ocean that is cold and deep.

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10
Q

water cycle

A

the way the rain falls and evaporates

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11
Q

Evaporation

A

the sun dries up the water and evaporates in to gas

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12
Q

Condensation

A

changes the gas in to water again a cloud

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13
Q

Precipitation

A

when the rain falls from the clouds

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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.

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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

an underwater feature found between continental slope

17
Q

abyssal plain

A

an underwater plain in the deep ocean

18
Q

mid-ocean ridge

A

A mid-ocean ridge is an underwater mountain system formed by plate tectonics.

19
Q

rift valley

A

a large elongated depression with steep walls formed by the downward displacement of a block.

20
Q

Seamount

A

a submarine mountain.

21
Q

ocean trench

A

a large underwater ditch

22
Q

Plankton

A

the small and microscopic organisms drifting or floating in the sea or fresh water.

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.

25
Q

desalination

A

the process of removing salt from seawater.