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Chapter 20 Study Notes

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Chapter 20 Study Notes Ocean Water Chapter 20 Section 1 Properties of Ocean Water 1 Most _____ enters the ocean from the _____. oxygen atmosphere 2 ... – PowerPoint PPT presentation

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Title: Chapter 20 Study Notes


1
Chapter 20 Study Notes
  • Ocean Water

2
Chapter 20 Section 1
  • Properties of Ocean Water

3
1
  • Most _______ enters the ocean from the
    ___________.

oxygen
atmosphere
4
2
  • _______ dissolve most easily in ______ ocean
    water.

Gases
cold
5
3
  • As the __________ changes, the ocean and
    atmosphere are continuously exchanging ______.

temperature
gases
6
4
  • The Ocean is often referred to as a ______ _____
    because it contains 60 times more carbon than the
    atmosphere.

carbon
sink
7
5
  • ________ elements in the ocean are those minerals
    that are _________ in amount.

Trace
smallest
8
6
  • Ocean water ___________ depends on the solar
    energy an area receives and the waters
    ___________.

temperature
movement
9
7
  • A layer of _____ covering ocean water in Polar
    Regions is called ______ ___.

ice
pack
ice
10
8
  • When surface ocean water is ________ by solar
    energy, its density _________.

warmed
decreases
11
9
  • As deep ocean water becomes ________, it also
    becomes ________ and ______ through the ocean
    basins.

colder
denser
sinks
12
10
  • Most wavelengths of visible ______ are absorbed
    by ocean water and microscopic sea life, the one
    color that is most _________ is _______.

light
reflected
blue
13
11
  • By studying variations in _____ in the ocean,
    scientists can determine the presence of
    ____________.

color
phytoplankton
14
Chapter 20 Section 2
  • Life in the Ocean

15
12
  • ________ is the __________of life in the ocean.

Plankton
foundation
16
13
  • ________ are the foundation of life in the ocean
    because they form the base of the ocean ______
    _____.

Plankton
food
chain
17
14
  • _____ _______ are an example of _______.

Sea
sponges
benthos
18
15
  • The ocean zone that receives the ______ _____
    energy and is home to the most diverse ocean life
    forms is the ______ ______.

most
solar
pelagic
zone
19
16
  • ______ _________ live in the ______ zone.

Marine
mammals
pelagic
20
Chapter 20 Section 3
  • Ocean Resources

21
17
  • The process of _________ salt from ocean water is
    called ___________.

removing
desalination
22
18
  • The most ________ ocean resource, found beneath
    the ocean floor, is _________.

valuable
petroleum
23
19
oil
  • Most offshore ____ and petroleum deposits are
    found along continental ________.

margins
24
20
trace
  • The ocean is the main source of the _____
    minerals __________ and _______.

magnesium
bromine
25
21
  • Raising aquatic plants and animals for human
    consumption is __________.

aquaculture
26
22
  • A major problem for ___________ is ________.

aquaculture
pollution
27
23
toxic
  • In addition to increased use of _____ chemicals,
    increased world ____________ has reduced the
    oceans ability to renew itself.

population
28
24
  • Some of the most deadly _________ found in ocean
    water today include mercury, toxic chemicals such
    as DDT, and ________.

pollutants
lead
29
THE END
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