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What is rubber? Rubber is a material which is elastic and waterproof.
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Rubber: A simple introduction - Explain that Stuff
Rubber: A simple introduction - Explain that Stuff
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What Is Natural Rubber and Why Are We Searching for New Sources? · Frontiers for Young Minds
Natural rubber - Wikipedia
What Is Natural Rubber and Why Are We Searching for New Sources? · Frontiers for Young Minds
