The correct word is to. The phrase "injurious to" means harmful or damaging, so the complete sentence is "Smoking is injurious to health".
Smoking is injurious _______ health.
Review the verified answer and explanation for this PPSC Punjab Public Service Commission past-paper question on CampusFin.
Question context
This question is part of 🗣️ Verbal Ability within the broader 🧠 Aptitude Mastery subject and appears in the PPSC Punjab Public Service Commission preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.