Question

as lestyn barr and his team of researchers discovered when establishing the glacial timeline of antarctica, the transantarctic mountains—a 3,500 - km mountain range spanning the continent—are home to glaciers of at least 60 million years in age. researchers concluded, antarctica had glaciers long before the formation of its continent - wide ice sheet 34 million years ago. which choice completes the text with the most logical transition? a. thus, b. by contrast, c. even so, d. nevertheless

Explanation:

The text presents a scientific discovery about Antarctica's glaciers. The key is to find the most logical transition word. "Thus" (A) is used for showing a result. "By contrast" (B) is for highlighting differences. "Even so" (C) is for indicating something despite a previous statement. "Nevertheless" (D) is also for showing contrast despite. The first part says glaciers were there 34 million years ago, and the second part says at least 60 million years. There is a contrast in time. "Nevertheless" is more appropriate as it shows a contrast in the timeline information.

Answer:

D. Nevertheless