Question 28

Advising caution in drawing conclusions regarding the presence of pollutants in the tissue of oysters

The passage emphasizes the importance of careful interpretation of data concerning chemical concentrations in oyster tissue, particularly in relation to industrial pollution. It highlights that high levels of cadmium may not necessarily indicate industrial pollution, thereby advising caution in making conclusions.

A) suggesting a method for determining the level of pollution in ocean water

This option is incorrect because the passage does not propose a specific method for measuring pollution levels in ocean water. Instead, it focuses on interpreting existing data from oyster tissue analysis rather than providing a methodology.

B) pointing out a flaw in the reasoning of scientists who study the concentration of chemicals in ocean water

While the passage does discuss potential misinterpretations, it does not specifically address flaws in the reasoning of scientists. Instead, it presents a cautionary note regarding the interpretation of data, rather than critiquing scientists directly.

C) warning of the danger to oysters of cadmium in ocean water

This option is misleading because the passage does not primarily focus on the dangers to oysters from cadmium. Instead, it emphasizes the context of interpreting cadmium levels and does not explicitly warn about the dangers to the oysters themselves.

D) contrasting the harm done by industrial pollution with the effects of pollution from other sources

This option is incorrect as the passage does not make a direct comparison between industrial pollution and other pollution sources. It merely discusses the presence of cadmium and its origins, without contrasting different types of pollution.

E) advising caution in drawing conclusions regarding the presence of pollutants in the tissue of oysters

This option is correct because the passage explicitly advises careful interpretation of the data regarding chemical concentrations in oysters. It highlights that high cadmium levels may result from natural oceanic processes rather than industrial pollution, underscoring the need for caution.

Conclusion

The correct answer, E, accurately reflects the main concern of the passage, which is the careful interpretation of data related to chemical concentrations in oysters. All other options fail to capture the essence of the passage, either misrepresenting its focus or introducing concepts that are not discussed. This highlights the critical importance of context in environmental science and data analysis.