Muft Shiksha
Update

Muft Shiksha™ एक 100% Free Education Portal है 🇮🇳, जिसका उद्देश्य Class 9–12 के हर विद्यार्थी तक High-Quality Education को पूरी तरह मुफ्त पहुँचाना है। 🇮🇳 हम मानते हैं कि अच्छी शिक्षा किसी student की आर्थिक स्थिति पर निर्भर नहीं होनी चाहिए। 🇮🇳 हर विद्यार्थी को वही Quality Study Material, MCQs, Quizzes, Exam Preparation, Concept-Based Learning और Bilingual Support मिलना चाहिए, जो आमतौर पर महंगी Coaching या Premium Platforms में मिलता है। Muft Shiksha™ 🇮🇳 इसी सोच के साथ बनाया गया है

Subjects
Class 11GeographyThe Origin and Evolution of the EarthEvolution of the earthHard
0 reads0 ratings0 helpful

Which cause should be placed first to understand the formation sequence of ozone layer?

Answer and explanation

Correct answer: Oxygen accumulation by photosynthesis

Increase of free oxygen was necessary before ozone formation. Exam tip: keep the sequence photosynthesis oxygen ozone.

Related tags

Oxygen AccumulationOzonePhotosynthesisEvolution Of The EarthThe Origin And Evolution Of The EarthGeographyClass 11 Mcq
सुधार सुझाएँ / Earn

Was this question useful?

No ratings yetWrite a review / Rate this question

Student Reviews

No published reviews yet.

KEEP PRACTISING

10 more MCQs
  1. 1Outgassing helped in the development of what on Earth?
  2. 2Which material moved toward the centre to form layers in the early Earth?
  3. 3How should the role of Earth's cooling in hydrosphere formation be understood?
  4. 4What effect did crust formation have on Earth's outer spheres?
  5. 5Which statement gives the correct difference between Earth's origin and the origin of life?
  6. 6What was the most prominent condition of the early Earth?
  7. 7Which light gases were mainly present in Earth's early atmosphere?
  8. 8Why did light gases like hydrogen and helium escape from Earth?
  9. 9What is the process of release of gases and water vapour from Earth's interior called?
  10. 10Which process played a major role in forming the secondary atmosphere?
Found an issue? Help improve this questionMy reports and replies

Add Muft Shiksha to your Home Screen

In Safari, tap Share, then Add to Home Screen.