In the early twentieth century, meteorologist Alfred Wegener proposed the theory of continental drift, arguing that Earth's continents were once joined in a single supercontinent before breaking apart. Wegener's theory was met with fierce skepticism from the geological establishment, primarily because he could not identify a plausible mechanism that could propel massive landmasses across the ocean floor. ______ Wegener continued to gather astronomical, paleontological, and climatological data to support his hypothesis until his death in 1930, decades before the discovery of plate tectonics vindicated his ideas.
Which choice completes the text with the most logical transition?
- AConsequently,
- BFor example,
- Nonetheless,Answer
- DMoreover,
Answer
Nonetheless, because it establishes a concession relationship between the geologists' skepticism and Wegener's continued research.
The sentence before the blank describes the widespread skepticism and rejection that Alfred Wegener faced from the geological community due to his theory's lack of a physical mechanism. The sentence after the blank notes that he nevertheless continued to gather supporting evidence until his death. The transition 'Nonetheless' correctly signals this relationship of concession or contrast, indicating that Wegener's persistent work occurred despite the prevailing skepticism.
Step-by-Step Solution
Key Concept
Identifying contrast and concession transitions to connect opposing ideas logically.