Temperature shifts can trend toward warming or cooling, based on a number of gravitational, seasonal, and human variables. These variables affect different ecosystems differently and thus should produce a random pattern in which some ecosystems warm while others cool. However, data gathered in a 1980s study shows that the shifts occur in a definitely skewed pattern, with most areas' temperatures rising simultaneously.
Which of the following, if true, forms the best basis for at least a partial explanation for the patterned changes recorded in the study?
Choices
A Massive warming can result from widespread pollution in many countries.
B Certain regions with specific geographical features respond in varying degrees to surrounding changes.
C Some regions grow warmer due to increased volcanic activity in those regions.
D In the 1990s and beyond, which were not as well documented, human pollution skewed the trend toward warming.
E Regions that are geographically closest are most likely to be affected in similar ways.
OA: A. Why is E not right here. The regions that were recorded in the sample were geographically closest and hence experienced same climatic effects. So the sample in the question was not representative of all regions in general.
Which of the following, if true, forms the best basis for at least a partial explanation for the patterned changes recorded in the study?
Choices
A Massive warming can result from widespread pollution in many countries.
B Certain regions with specific geographical features respond in varying degrees to surrounding changes.
C Some regions grow warmer due to increased volcanic activity in those regions.
D In the 1990s and beyond, which were not as well documented, human pollution skewed the trend toward warming.
E Regions that are geographically closest are most likely to be affected in similar ways.
OA: A. Why is E not right here. The regions that were recorded in the sample were geographically closest and hence experienced same climatic effects. So the sample in the question was not representative of all regions in general.
