Multiple choice general knowledge science & technology

Which of the following is an essential component of plaster and wallboard for construction?

  1. apatite

  2. garnet

  3. gypsum

  4. talc
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Gypsum (calcium sulfate) is the essential component of plaster of Paris and gypsum wallboard/drywall used in construction. Apatite is phosphate ore, garnet is an abrasive, and talc is used in powder and cosmetics - not construction materials.

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