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
0 reads0 ratings0 helpful

After biosphere formed how should life's effect on atmosphere be understood at expert level?

Answer and explanation

Correct answer: The biosphere changed atmospheric composition through photosynthesis

Photosynthetic organisms, especially cyanobacteria, used carbon dioxide and released oxygen. Over long periods, this altered atmospheric composition and contributed to the development of an oxygen-rich atmosphere. Earth’s core formed through early planetary differentiation, not through life. Exam tip: Use photosynthesis and the rise of oxygen as the key example of how life modified the atmosphere.

Related tags

BiosphereAtmospherePhotosynthesisOxygenationEarth EvolutionClass 11 GeographyEvolution Of The EarthThe Origin And Evolution Of The Earth

Was this question useful?

No ratings yetWrite a review / Rate this question

Student Reviews

No published reviews yet.

Add Muft Shiksha to your Home Screen

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