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Which of the following is the biggest threat to the Monarch butterflies annual migration? a. illegal logging c. airplanes b. cold winters d. new predators
A. [ Illegal logging The biggest threat to the Monarch butterflies annual migration is illegal logging. The monarch overwintering sites are under threat because of people cutting down their favorite trees to build roads, houses and farms. ]
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Asked 9/17/2013 7:36:28 AM
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