Q. Consider the following statements:
  1. Temperature is the most important ecologically relevant environmental factor.
  2. Thermal springs and deep-sea hydrothermal vents thrive at subzero levels in polar areas.
Which of the above statements is / are correct?

Answer: Only 1
Notes: Statement 1 is correct as temperature is a principal ecological factor affecting organismsu0027 distribution. Statement 2 is incorrect; thermal springs and deep-sea hydrothermal vents are unique habitats where temperatures can exceed 100°C, not subzero levels in polar areas. Therefore, only statement 1 is correct, reflecting ecological temperature variation and specialized habitats.
Question Source: 📚This question has been sourced from GKToday's Target UPSC Prelims for 2026, 2027 & 2028 App Exclusive Course in GKToday Android Application which provides more than 12K Topicwise UPSC Prelims General Studies questions with explanations framed on UPSC pattern. Download the app here.
📌 Question Number: 107 in Concepts and Lexicon in Environment in the above course in App.