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5) Discuss how latitude and climatological processes affect seawater salinity.
Bloom's Taxonomy: Remembering/Understanding
Section: 5.6 How Does Seawater Salinity Vary at the Surface and with Depth?
Essent'l Concept: 5.6 Specify how seawater salinity varies at the surface and with depth
6) Discuss how hydrogen bonding in water allows water to support life on earth. Include in your
answer how hydrogen bonding affects the physical and chemical properties of water.
Bloom's Taxonomy: Applying/Analyzing
Section: 5.1 Why Does Water Have Such Unusual Chemical Properties?
Essent'l Concept: 5.1 Specify water's unique chemical properties
31
7) Explain how seawater salinity is affected by surface processes (such as precipitation and
evaporation, for example).
Bloom's Taxonomy: Remembering/Understanding
Section: 5.4 Why Does Seawater Salinity Vary?
Essent'l Concept: 5.4 Explain why seawater salinity varies
8) How does the ocean's salinity vary with depth?
Bloom's Taxonomy: Remembering/Understanding
Section: 5.6 How Does Seawater Salinity Vary at the Surface and with Depth?
Essent'l Concept: 5.6 Specify how seawater salinity varies at the surface and with depth
9) Discuss the relationship between seawater density and water temperature.
Bloom's Taxonomy: Remembering/Understanding
Section: 5.7 How Does Seawater Density Vary with Depth?
Essent'l Concept: 5.7 Specify how seawater density varies with depth
10) Describe the various methods used to desalinate seawater.
Answer: Electrolysis Method: A current is run through positive and negative electrodes in
freshwater separated by semipermeable membranes from seawater. Distillation Method:
Saltwater is boiled and the water vapor is passed through a cooling condenser, where it
condenses as freshwater. Freeze Separation Method: Seawater is frozen and thawed multiple
times, with the salts washed from the ice between each thawing. Reverse Osmosis Method:
Water on the salty side of a semipermeable membrane is pushed under high pressure through the
membrane to the freshwater side.
Diff: 1
Bloom's Taxonomy: Remembering/Understanding
Section: 5.8 What Methods Are Used to Desalinate Seawater?
Essent'l Concept: 5.8 Compare the methods used to desalinate seawater
32
Copyright © 2017 Pearson Education, Inc.
5.4 Visual Questions
Match the pH with the appropriate item. Not all answers will be used.
A) 6
B) 8
C) 5
D) 12
E) 3
F) 9
G) 2
H) 11
1) Antacids
Bloom's Taxonomy: Applying/Analyzing
Section: 5.5 Is Seawater Acidic or Basic?
Bloom's Taxonomy: Applying/Analyzing
Section: 5.5 Is Seawater Acidic or Basic?
Bloom's Taxonomy: Applying/Analyzing
Section: 5.5 Is Seawater Acidic or Basic?
4) Coffee
Bloom's Taxonomy: Applying/Analyzing
Section: 5.5 Is Seawater Acidic or Basic?
Bloom's Taxonomy: Applying/Analyzing
Section: 5.5 Is Seawater Acidic or Basic?
Bloom's Taxonomy: Applying/Analyzing
Section: 5.5 Is Seawater Acidic or Basic?
Bloom's Taxonomy: Applying/Analyzing
Section: 5.5 Is Seawater Acidic or Basic?
Bloom's Taxonomy: Applying/Analyzing
Section: 5.5 Is Seawater Acidic or Basic?
Bloom's Taxonomy: Applying/Analyzing
Section: 5.5 Is Seawater Acidic or Basic?
10) Unpolluted Rainwater
Bloom's Taxonomy: Applying/Analyzing
Section: 5.5 Is Seawater Acidic or Basic?
Essent'l Concept: 5.5 Discuss the acid/base properties of seawater
Global Sci Out: 3
Bloom's Taxonomy: Applying/Analyzing
Section: 5.2 What Important Physical Properties Does Water Possess?
Essent'l Concept: 5.2 Discuss water's important physical properties
Global Sci Out: 3
35
12)
Which of the following surface seawater salinity conditions would you predict for the following
location: Latitude: 30°S Longitude: 80°E
A) High surface seawater salinity due to evaporation
B) High surface seawater salinity due to precipitation
C) Low surface seawater salinity due to evaporation
D) Low surface seawater salinity due to precipitation
Bloom's Taxonomy: Applying/Analyzing
Section: 5.2 What Important Physical Properties Does Water Possess?
Essent'l Concept: 5.2 Discuss water's important physical properties
Global Sci Out: 3
36
13)
Which of the following surface seawater salinity conditions would you predict for the following
location: Latitude: 60°N Longitude: 20°W
A) High surface seawater salinity due to evaporation
B) High surface seawater salinity due to precipitation
C) Low surface seawater salinity due to evaporation
D) Low surface seawater salinity due to precipitation
Bloom's Taxonomy: Applying/Analyzing
Section: 5.2 What Important Physical Properties Does Water Possess?
Essent'l Concept: 5.2 Discuss water's important physical properties
Global Sci Out: 3
37
14)
Which of the following surface seawater salinity conditions would you predict for the following
location: Latitude: 50°S Longitude: 170°W
A) High surface seawater salinity due to evaporation
B) High surface seawater salinity due to precipitation
C) Low surface seawater salinity due to evaporation
D) Low surface seawater salinity due to precipitation
Bloom's Taxonomy: Applying/Analyzing
Section: 5.2 What Important Physical Properties Does Water Possess?
Essent'l Concept: 5.2 Discuss water's important physical properties
Global Sci Out: 3
38
15)
Which of the following surface seawater salinity conditions would you predict for the following
location: Latitude: 25°S Longitude: 55°E
A) High surface seawater salinity due to evaporation
B) High surface seawater salinity due to precipitation
C) Low surface seawater salinity due to evaporation
D) Low surface seawater salinity due to precipitation
Bloom's Taxonomy: Applying/Analyzing
Section: 5.2 What Important Physical Properties Does Water Possess?
Essent'l Concept: 5.2 Discuss water's important physical properties
Global Sci Out: 3
39
