Total 10 Questions (Please
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1. u201cVulcanizationu201d is a method of heating rubber to make it strong. Who discovered this process?
2. Most of the rubber in the world grows in which three countries?
The United States of America, Mexico, and Canada
Thailand, Indonesia, and Malaysia
Australia, New Zealand, and Papua New Guinea
3. How many pounds (abbreviation: lbs) of latex does an average rubber tree produce in a year?