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How is salinity at 200 m depth (figure 3a-5) different from surface salinity (figure 3a-3). a. It is higher. b. It is lower. c. It remains unchanged.

How is salinity at 200 m depth (figure 3a-5) different from surface salinity (figure 3a-3). a. It is higher. b. It is lower. c. It remains unchanged.

Applications and Investigations in Earth Science (9th Edition)
Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
Problem 1LR
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How is salinity at 200 m depth (figure 3a-5) different from surface salinity (figure 3a-3).

a. It is higher.

b. It is lower.

c. It remains unchanged. 

Figure 3A-5 is a color-coded global ocean map of mean annual salinity at 2000 m. Salinity is unitless at 0.1 intervals. World Ocean Atlas Climatology Decadal average: 1955 - 2017 Contour Interval-0.05 60'Ε 120'E 180 120'W 60'W 90'N -N.06 36.5 60'N- 60'N 36.0 30°N- 34.6 30'N 35.5 Fo 35.0 30°S- -30'S 34.5 60's- -60'S 34.0 60'E 120'E 180 120'W 60'W Annual salinity at 2000 m. depth (one-degree grid)
Transcribed Image Text:Figure 3A-5 is a color-coded global ocean map of mean annual salinity at 2000 m. Salinity is unitless at 0.1 intervals. World Ocean Atlas Climatology Decadal average: 1955 - 2017 Contour Interval-0.05 60'Ε 120'E 180 120'W 60'W 90'N -N.06 36.5 60'N- 60'N 36.0 30°N- 34.6 30'N 35.5 Fo 35.0 30°S- -30'S 34.5 60's- -60'S 34.0 60'E 120'E 180 120'W 60'W Annual salinity at 2000 m. depth (one-degree grid)
Figure 3A-3 is a color-coded global ocean map of mean annual sea-surface salinity (SSS) acquired from WOA 2018. Isohalines are alternating solid and dashed lines connecting points of equal salinity and are shown with a contour interval of 0.5. World Ocean Atlas Climatology Decadal average: 1955 - 2017 Contour Interval-0.5 60°E 120'E 180 120'W 60°W 90'N- -90'N -36 60°N 35 30'N- 30°N 34 33 30'S- 30'S - 32 60'S- F60'S -31 60'E 120'E 180 120'W 60'W Figure 3A-3. Global ocean map of mean annual sea-surface salinity (SSS). [World Ocean Atlas 2018, Link 3A-1]
Transcribed Image Text:Figure 3A-3 is a color-coded global ocean map of mean annual sea-surface salinity (SSS) acquired from WOA 2018. Isohalines are alternating solid and dashed lines connecting points of equal salinity and are shown with a contour interval of 0.5. World Ocean Atlas Climatology Decadal average: 1955 - 2017 Contour Interval-0.5 60°E 120'E 180 120'W 60°W 90'N- -90'N -36 60°N 35 30'N- 30°N 34 33 30'S- 30'S - 32 60'S- F60'S -31 60'E 120'E 180 120'W 60'W Figure 3A-3. Global ocean map of mean annual sea-surface salinity (SSS). [World Ocean Atlas 2018, Link 3A-1]
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