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What material has low protection from sparks and slag?

  1. Leather

  2. Cotton

  3. Polyester

  4. Wool

The correct answer is: Polyester

Polyester is a synthetic material that has low protection from sparks and slag. Leather is often used for protective gear but offers better protection compared to polyester. Cotton, although commonly used in everyday clothing, can easily catch fire and is not recommended for protection against sparks and slag. Wool, though it may offer some protection, is not typically used for protective gear and can still catch fire.