Anaerobic activities are low in intensity but long in duration.

True or false

Anaerobic exercise is harder but shorter than aerobic exercise.

False. Anaerobic activities are actually high in intensity but short in duration. Anaerobic exercises are characterized by short bursts of intense effort, such as weightlifting, sprinting, or high-intensity interval training. These activities typically rely on stored energy sources in the muscles, rather than using oxygen for energy production, hence the term "anaerobic," which means "without oxygen."