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

Before biosphere appeared which three systemic preparations were most important?

Answer and explanation

Correct answer: Solid surface, hydrosphere and favourable atmosphere

The governing idea is that life could emerge only after several physical and chemical conditions had developed together. A sufficiently solid Earth provided surfaces and minerals; a hydrosphere supplied liquid water, an essential medium for known life; and a more suitable atmosphere provided gases, pressure, and protection needed for continuing chemical evolution. These systems did not appear fully formed at one moment, but developed through cooling, condensation, outgassing, and atmospheric change. Option A correctly combines the three broad prerequisites. Option B includes irrelevant or incomplete items, while C describes much later human developments. Option D mixes a later atmospheric feature with modern technology and an overly vague item.

Related tags

Biosphere PrerequisitesHydrosphereAtmosphereEvolution Of The EarthThe Origin And Evolution Of The EarthGeographyClass 11 Mcq

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.