The Origin and Evolution of the Earth ONE SHOT CLASS 11 ✅ पृथ्वी की उत्पत्ति एवं विकास | Amit Sir

Earth (पृथ्वी)|Modern Concept Regarding Earth's Origin (पृथ्वी की उत्पत्ति की आधुनिक संकल्पना)|Shape Of The Earth (पृथ्वी का आकार / आकृति)|Continents (महाद्वीप)|OMR|Summary

Earth (पृथ्वी)|Modern Concept Regarding Earth's Origin (पृथ्वी की उत्पत्ति की आधुनिक संकल्पना)|Shape Of The Earth (पृथ्वी का आकार / आकृति)|Continents (महाद्वीप)|OMR|Summary

Consider the following three statements and select the correct option stating which one is true (T) and which one is false (F). (i) Oparin of Russia and Haldane of England proposed that the first form of life could have come from pre-existing nonliving organic molecules (e.g, RNA, protein etc.) and that formation of life was preceded by schemical evolution. (ii) Based on observations made during a sea voyage around the world. Charies Darwin concluded that existing living forms share similarities to varying degrees only among themselves. (iii) Evolution by natural selection must have started when cellular forms of life with different metabloic cpability originated on Earth.

In a class of 100 students, every student has passed in one or more of the three subjects, i.e. History, Economics and English. Among all the students , 24 students have passed in English only , 14 students have passed in History only, 11 students have passed in both English and Economics only, and 12 students have passed in both English and History only. A total of 50 students have passed in History. If only 5 students have passed in all three subjects, then how many students have passed in Economics only? 100 छात्रों की एक कक्षा में, प्रत्येक छात्र तीन विषयों यानी इतिहास, अर्थशास्त्र तथा अंग्रेजी में से एक या अधिक विषय में पास हुआ है | सभी छात्रों में से, 24 छात्र केवल अंग्रेजी में पास हुए हैं, 11 छात्र अंग्रेजी तथा अर्थशास्त्र दोनों में पास हुए हैं तथा 12 छात्र केवल अंग्रेजी और इतिहास में पास हुए हैं | इतिहास में कुल 50 छात्र पास हुए हैं | यदि सभी तीन विषयों में केवल 5 ही छात्र पास हुए हैं, तो केवल अर्थशास्त्र में पास करने वाले छात्रों की संख्या कितनी है ?