General Knowledge · General Phenomena
Which natural phenomena were proposed by early, now-discredited scientific hypotheses as the potential cause of crop circle formations?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1High output per unit of land through manual labor
- 2Migrant labor activities on large plantation estates
- 3Extensive use of chemicals and over-irrigation
- 4Localized wind vortices or plasma phenomena✓
Correct answer
Localized wind vortices or plasma phenomena
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