Evolution of the earth

01Which later process became more possible after formation of early crust?

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Answer and explanation

Correct answer: A. Rainwater accumulating as permanent water bodies

The formation and cooling of an early solid crust created a comparatively stable surface on which liquid water could collect. As Earth’s atmosphere cooled, water vapour condensed into droplets and rainfall, and water accumulated in surface depressions to form oceans, lakes and other lasting bodies. This helped establish the hydrosphere and prepared conditions for later geological and biological development. The process did not transform gases into the Sun, eliminate gravity or cause organisms to fly immediately. Option A follows the scientifically reasonable sequence from cooling and crust formation to condensation and water accumulation; the other options are unrelated or physically impossible.

Practice questions

01Which later process became more possible after formation of early crust?प्रारंभिक पर्पटी के बनने से पृथ्वी पर आगे कौन सी प्रक्रिया अधिक संभव हुई?

02Why was water vapour in the secondary atmosphere a link between atmosphere and hydrosphere?द्वितीय वातावरण में जलवाष्प की भूमिका वातावरण और जलमंडल के बीच कड़ी क्यों थी?

05What balance was necessary for water to remain liquid on Earth?पृथ्वी पर जल के तरल रूप में टिकने के लिए कौन सा संतुलन जरूरी था?

06Why was complex land life difficult before the spread of photosynthetic organisms?प्रकाश संश्लेषी जीवों के फैलाव से पहले जटिल स्थल जीवन क्यों कठिन था?

07Earth's interior remaining hot for a long time helps explain which event?पृथ्वी के आंतरिक भाग का लंबे समय तक गर्म रहना किस घटना को समझाने में सहायक है?

08What was the effect of some gases dissolving in oceans?महासागरों में कुछ गैसों के घुलने से क्या प्रभाव पड़ा?

09Why is biosphere considered dependent on other Earth systems?जीवमंडल को पृथ्वी की अन्य प्रणालियों पर निर्भर क्यों माना जाता है?

10What was the combined effect of gravity and density in making Earth layered?पृथ्वी के परतदार बनने की प्रक्रिया में गुरुत्व और घनत्व का संयुक्त प्रभाव क्या था?

11Why are rocks considered records of Earth's ancient history?चट्टानों को पृथ्वी के पुराने इतिहास का रिकॉर्ड क्यों माना जाता है?

12If hydrosphere had not developed why would origin of life be difficult?यदि पृथ्वी पर जलमंडल विकसित न होता तो जीवन की उत्पत्ति क्यों कठिन होती?

13What does presence of gases like ammonia and methane on early Earth indicate?प्रारंभिक पृथ्वी पर अमोनिया और मीथेन जैसी गैसों की उपस्थिति क्या संकेत देती है?

14Early life changing from simple to complex forms is an example of what?प्रारंभिक पृथ्वी पर जीवन का सरल से जटिल रूपों तक बढ़ना किसका उदाहरण है?

15The giant impact idea in Earth's evolution is related to which event?पृथ्वी के विकास में विशाल टक्कर विचार किस घटना से संबंधित है?

16Why is it incomplete to consider Earth's evolution only a geological event?पृथ्वी के विकास को केवल भूगर्भीय घटना मानना क्यों अधूरा है?

18Why did atmospheric evolution continue even after hydrosphere formed?जलमंडल बनने के बाद भी वातावरण का विकास क्यों जारी रहा?

19What is the relation between crust formation and development of lithosphere?पर्पटी के बनने और स्थलमंडल के विकास में क्या संबंध है?

20Why is oxygen accumulation considered a major turning point in Earth's life history?ऑक्सीजन संचय को पृथ्वी के जीवन इतिहास में बड़ा मोड़ क्यों माना जाता है?

21Which statement is most suitable for evolution from early Earth to present Earth?प्रारंभिक पृथ्वी से आज की पृथ्वी तक के विकास में सबसे उपयुक्त कथन कौन सा है?

23What is the correct relation between photosynthesis and the ozone layer?प्रकाश संश्लेषण और ओजोन परत के बीच सही संबंध क्या है?

24What major preparation was necessary on Earth before origin of life?जीवन की उत्पत्ति से पहले पृथ्वी पर कौन सी प्रमुख तैयारी आवश्यक थी?

25Which is a correct example of multiple roles of oceans in Earth's evolution?पृथ्वी के विकास में महासागरों की बहु भूमिका का सही उदाहरण कौन सा है?

Analytics choices

01Which later process became more possible after formation of early crust?

02Why was water vapour in the secondary atmosphere a link between atmosphere and hydrosphere?

05What balance was necessary for water to remain liquid on Earth?

06Why was complex land life difficult before the spread of photosynthetic organisms?

07Earth's interior remaining hot for a long time helps explain which event?

08What was the effect of some gases dissolving in oceans?

09Why is biosphere considered dependent on other Earth systems?

10What was the combined effect of gravity and density in making Earth layered?

11Why are rocks considered records of Earth's ancient history?

12If hydrosphere had not developed why would origin of life be difficult?

13What does presence of gases like ammonia and methane on early Earth indicate?

14Early life changing from simple to complex forms is an example of what?

15The giant impact idea in Earth's evolution is related to which event?

16Why is it incomplete to consider Earth's evolution only a geological event?

18Why did atmospheric evolution continue even after hydrosphere formed?

19What is the relation between crust formation and development of lithosphere?

20Why is oxygen accumulation considered a major turning point in Earth's life history?

21Which statement is most suitable for evolution from early Earth to present Earth?

23What is the correct relation between photosynthesis and the ozone layer?

24What major preparation was necessary on Earth before origin of life?

25Which is a correct example of multiple roles of oceans in Earth's evolution?