The AP Environmental Science (APES) exam is 2 hours and 40 minutes long. Here’s how that time breaks down:

  • Multiple-choice section: 80 questions in 1 hour 30 minutes.
  • Free-response section: 3 questions in 1 hour 10 minutes.

Schools also add time for instructions, seating, and collecting materials, so you’ll be in the exam room a bit longer overall.