UPSC Essentials brings to you its initiative of subject-wise quizzes. These quizzes are designed to help you revise some of the most important topics from the static part of the syllabus. Attempt today’s subject quiz on Environment and Geography to check your progress. 🚨 Click Here to read the UPSC Essentials magazine for June 2026. Share your views and suggestions in the comment box or at [email protected]🚨 Which of the following are the ecological factors responsible for the growth of corals? 1. Temperature 2. Salinity 3. High freshwater influx 4. Low availability of sunlight 5. Current flow of the Ocean (a) 1, 2, 3 and 5 only (b) 1, 3, 4 and 5 only (c) 1, 2, 3, 4 and 5 (d) 1, 2 and 5 only Relevance: Coral reefs are a recurring UPSC topic due to concerns over climate change, coral bleaching, marine biodiversity, and ocean conservation. Understanding these factors is essential for linking current environmental developments with topics related to marine ecosystems, biodiversity conservation, and coastal ecology. Explanation — The government body has also begun data collection to measure sediment deposition at …