Multiple choice general knowledge

dross is

  1. The act or process of swallowing.

  2. unquestionable

  3. Worthless or dangerous material that should be removed.

  4. Wildly excited or active

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Dross refers to waste material, impurities, or worthless byproducts that need to be removed from something valuable. In metalworking, dross is the mass of impurities that floats on molten metal. The term is also used metaphorically to describe useless or harmful elements that should be eliminated.