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Mestral's observation led him to invent:

AVelvet
BVellum
CVeneer
DVelcro
Answer & Solution
Correct answer: D. Velcro
1. He made a material with similar tiny hooks that would stick. 2. This gave Mestral the idea of making Velcro. 3. So the correct answer is Velcro. _Source: syllabus Environmental Studies, 'Looking Around', Ch 5 'Seeds and Seeds'_
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