WBCS.LIVE practice question

Rust needs three components to occur, i.e. ________.

Solve this multiple-choice question and check the correct answer with its explanation below.

Answer options

  1. Steel, iron and oxygen
  2. Iron, oxygen and moisture
  3. Iron, nitrogen and moisture
  4. Helium, hydrogen and nitrogen

Correct answer and explanation

Correct answer: Iron, oxygen and moisture