At which height will the levels of oxygen be almost negligible?

Q. At which height will the levels of oxygen be almost negligible?
Answer: 120 km
Notes: The portion of the gases changes in the higher layers of the atmosphere. Oxygen will be almost negligible at the heights of 120 km. Similarly Carbon Dioxide is found only up to the height of 90 km.

This Question is Also Available in:

हिन्दी

Question Source: 📚This question has been sourced from GKToday's "40000+ GK / General Studies MCQs for SSC & State PCS Exams" App Exclusive Course in GKToday Android Application which provides more than 40K General Knowledge and General Studies questions with explanations asked in all Competitive Exams of India. Download the app here.

📌 Question Number: 67 in Climatology - Atmosphere, Winds, Humidity, Clouds, Rainfall in the above course in App.