Which word means "having a harmful effect"?APerniciousBPerilousCPreciousDPerceptiveAnswer: A. Pernicious Read Explanation: Pernicious means:Highly harmfulDestructiveCausing great damage, often in a gradual or subtle wayExample:Smoking has a pernicious effect on health.Options:Pernicious → having a harmful effect ✅Perilous → dangerous or risky ❌Precious → valuable ❌Perceptive → having keen insight or understanding ❌ Read more in App