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As controversy continues to simmer concerning global warming, scientists have been studying the frigid waters around Antarctica, concerned about the melting ice, a lowering overall salt concentration in the water, and how these changes may impact both the local and global ecosystems. Below are the results of two studies collected by researchers concerning water changes.

Study #1-Location: Southern Ocean. Average Water Depth-180 meters. Data collected at 45 m.

Year Water Temperature (Celsius) % Salination of Water
1975 1.4 3.1
1985 1.6 3.0
1995 1.7 2.9
2005 2.0 2.86
2015 2.2 2.75

Study #2-Location: West Weddel Sea. Average Water Depth-75 meters. Data collected at 45 m.

Year Water Temperature (Celsius) % Salination of Water
1975 1.52 2.9
1985 1.52 2.9
1995 1.49 2.9
2005 1.49 2.9
2015 1.41 2.9

The researchers are preparing to publish the results of their study in a scholarly journal. They begin the conclusion section with the following statement: “The data we collected in both the Southern Ocean and West Weddel Sea led us to draw the following conclusion…”

Which statement, based on the data, would best be used to finish the statement?

A

Both locations show that water temperature and per cent salination are closely related.

B

At the same water depth, there is no difference in water temperature and salination between the two bodies of water.

C

As water temperature increases in either body of water, than the per cent salination increases.

D

Since the two bodies of water are in different areas and at different depths, no comparisons can be effectively made.

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