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Which three of these processes commonly produce harmful substances?Sanding woodWashing overallsTile cuttingErecting scaffoldingDigging a trenchCurb cutting

Question

Which three of these processes commonly produce harmful substances?Sanding woodWashing overallsTile cuttingErecting scaffoldingDigging a trenchCurb cutting

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Solution

Para determinar cuáles de estos procesos comúnmente producen sustancias nocivas, analicemos cada uno:

  1. Sanding wood: Este proceso genera polvo de madera, que puede ser perjudicial si se inhala, ya que puede causar problemas respiratorios y alergias.

  2. Washing overalls: Este proceso generalmente no produce sustancias nocivas, a menos que se utilicen detergentes o productos químicos específicos que puedan ser dañinos.

  3. Tile cutting: Cortar baldosas produce polvo de sílice, que es muy perjudicial para los pulmones si se inhala.

  4. Erecting scaffolding: Este proceso no suele producir sustancias nocivas, ya que implica ensamblar estructuras metálicas o de madera.

  5. Digging a trench: Excavar una zanja puede liberar polvo y, dependiendo del terreno, puede liberar sustancias químicas o biológicas nocivas presentes en el suelo.

  6. Curb cutting: Cortar bordillos también produce polvo, que puede contener sílice y ser perjudicial si se inhala.

Por lo tanto, los tres procesos que comúnmente producen sustancias nocivas son:

  1. Sanding wood
  2. Tile cutting
  3. Curb cutting

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