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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 following statement is released by a separate team who worked at the site: “In Antarctica the oceans and other bodies of water are stratified in layers, with colder, less salty water on top and warmer, saltier water below.”

The researchers have sent their paper in for review. A person who is peer reviewing the research read the above statement and now is critically evaluating the paper.

Based on the above statement, what suggestion will the reviewer make before the paper is considered acceptable for publication?


Take new temperature readings in shallower water in the West Weddel Sea.


Take a salinity reading at a deeper depth in the Southern Ocean.


Attempt to find different temperature and salinity readings at various depths in both bodies of water.


Take a single temperature and salt reading at a depth of 45 meters in a different Antarctic body of water.

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