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Disagree with 2

ACTSCI-TH76DK

Use the passage below, as well as the original research study, to help you answer questions 4 and 5.

Two scientists share opposing viewpoints on a critical global issue:

Scientist #1: Man is causing much of the climate changes we are seeing. The decimation of the rain forests and the burning of fossil fuels has led to a massive increase in carbon dioxide in the atmosphere. This in turn allows more ultraviolet radiation to be trapped in the lower atmosphere. More ultraviolet light radiation means more heat, and this is causing devastation to our ecosystems.

Scientist #2: The cutting down of forest land and the addition of a few more cars on the road cannot cause the “ecosystem devastation” you are talking about. Certainly the loss of all the rainforest is harmful to the local area. And I certainly agree that air pollution due to our vehicles can cause local air quality problems. But to say it is causing all this harm to the far away ecosystems is ludicrous.

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

A panel has listened to the discussion between the two scientists. One member is in complete disagreement with the argument presented by Scientist #2.

What data from the research study might she use in an attempt to change the opinion of this Scientist?

A

The per cent salination data from 1995-2005 in the West Weddel Sea

B

The water temperature data from 1975-1985 in the West Weddel Sea

C

The per cent salination data from 1995-2005 in the Southern Ocean

D

The water temperature data from 1995-2005 in the Southern Ocean