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Marine Bio > Seawater > Flashcards

Seawater Flashcards

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1
Q

Sonar equipment

A

1.use of sound waves

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2
Q

URV’S

A

(underwater research vehicle)

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3
Q

Continental shelf

A

a) part of landmass
B) A person ocean area
C) width varies

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4
Q

Shelf break

A

A) occurs between 120–200 meters

B) forms the continental shelf

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5
Q

Continental slope

A

A. Boundary between continent and ocean floor.

B. Steep drop of parentheses (3–10 feet per mile.)

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6
Q

Submarine canyons

A

A. Found where large rivers run into the sea

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7
Q

Ocean basin

A

A. Covers most of the oceans

B. Deep and flat

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8
Q

Trenches

A 
A. Causes by plate tectonics
B. Deeper then 6km
C.deepest is 11 km (7 miles)
D. 2% ocean floor
E. Rigorous  temperature and pressure
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9
Q

Rigorous temperature and pressure

A

1 can reach zero Celsius

2. Pressure so high that H2O becomes the consistent of honey

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10
Q

Ocean ridges and rises (mountains )

A

A. Consistently tectonics
B. Ocean for 3% of ocean floor
C. Rigid mountain ranges encircled the earth
D. Many

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11
Q

Seamount (Hawaiian islands)

A

A. Volcano or underwater mountains
B. Atoll
C. Guyout

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12
Q

A. Volcano or underwater mountains

A
  1. Active

2. Inactive

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13
Q

Atoll

A

Ring shape sea mountain that does not totally puncture the surface

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14
Q

Guyout

A

Flat seamount

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15
Q

Origin of water and minerals

A

A) hypothesis

B) hydrogen bonding

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16
Q

Hypothesis

A
  1. Gradual or incremental addition of water
  2. Sources include
    A. Volcano activities
    B. Hot Springs
    C. Heating of igneous rocks, why he released Water
17
Q

Hydrogen bonding

A

On the bond are + and -

18
Q

Polarized molecule

H2o

A

H-O•H

    O- 
    /\.         
   /  \    H+    H+
19
Q

Properties of pure water

A

A. Exist as solar liquid and gas in nature
B. Simple structures
1. 2 Element
2. 3 atoms
* unique molecule structure and therefore processes unusual properties

20
Q

Polarity

A

Molecule is paralyzed

  1. 2 H’s at 1 end and one o atom at the end of each other
    • and - creating a H bonds between the water molecules a week Bond form by the traction between positive and negative
21
Q

Surface tension

A
  1. Water has the most of surface tension of liquids except for mercury
  2. H bond of surface molecules are stronger than below the surface
  3. Force is distributed over 180 not 360
  4. Provide support for surface organisms
22
Q

Viscosity

A

Thickness; resistance to flow

23
Q

Temperature

A
  1. Water becomes less dense as it freezes.
    A. Causes to float
    B. Inhabits complete freezing of large bodies of water
    C. Why
    1. Increases crystals
    2. Salt do not freeze
    3. H-bonding
24
Q

Density

A
  1. Max density of water is 4’C
    A. Molecules way more because they are more compact
    B. Promotes down vertical transports of cold surface water
    1. Carries who Z and nutrients to the bottom layers
    2. Past 4C water becomes less dense due to the age of bonds and intitle circle formation
25
Q

Heat capacity

A
  1. Observed son of heat by water into the temperature of water changes
  2. Radiant heat is absorbed in the first 4CM of water surface
    A. Promotes low temperature changing in a large bodies of water
26
Q

Latent heat of fusion

A
  1. Energy establishes for phrase change of liquid water to solid
    A. Inhabit freezing of large bodies of water
27
Q

Topography

A

The study of land shape

  1. Including ocean floors
    a) sonar equipment
28
Q

Latent heat of vaporization

A
  1. Energy needs for freezes change from liquid water to gas (steams)
    A. Stabilizes environment
29
Q

Stabilizes environment

A
  1. Moderate surface water tempi tire

2. Cools atmosphere through evaporation

30
Q

Solvent action

A

Dissolves more substances and any other liquid
(Universal solvent)
A. Maintain large varieties of substances in solution promoting many chemical combinations
1. Origin of life

31
Q

Properties of seawater

A 
A. 3.5% dissolved salts (35 ppt) 
     1. Dissolved gases from atmosphere
     2. Organic substance
 B. 96.5% pure water
C. Do you to ocean connections
(na+) (cr) 
        1. Ion concentration remained the same
       2. Veritable - pure water 
* Salt does not evaporate or freeze
32
Q

When is the _____ %of dissolve the salt or The ocean has _____PPT (parts per thousand)

A

35 or 3.5

Marine Bio (5 decks)

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