WBCS.LIVE practice question

The reduced air pressure on airline flights can lessen the amount of oxygen in passengers' blood for twenty five percent.

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

Answer options

  1. The reduced air pressure on airline flights
  2. No error
  3. in passengers' blood for twenty five percent
  4. can lessen the amount of oxygen

Correct answer and explanation

Correct answer: in passengers' blood for twenty five percent