English Language · English
Which choice completes the text with the most logical and precise word or phrase? Physicist Joseph Weber performed ______ work in gravitational wave research in the 1960s and 1970s, conducting key experiments that scientists later used as the basis for their own investigations that led to the first verified detection of a gravitational wave in 2015.
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1ineffective
- 2repetitive
- 3supplementary
- 4foundational✓
Correct answer
foundational
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