The Origin and Evolution of the Earth Ch (2) Practice Quiz in English Part 1 || Class 11 Geography Book -1 Practice Quizzes in English Posted on February 25, 2025February 27, 2025 by Anshul Gupta0% 0 votes, 0 avg 1 The Origin and Evolution of the Earth Ch (2)Practice Quiz in English Part 1 || Class 11 Geography Book -1 Practice Quizzes in English 1 / 201. What is the process by which Earth’s layers formed called? A. Differentiation B. Condensation C. Photosynthesis D. Degassing Explanation: Differentiation is the process where denser materials sank to the center of the Earth, forming the core, while lighter materials rose to the surface, creating the crust and mantle. 2 / 202. What is the name of the Russian scientist who revised the nebular hypothesis in 1950? A. Immanuel Kant B. Otto Schmidt C. Carl Weizascar D. Edwin Hubble Explanation: Otto Schmidt, along with Carl Weizascar, proposed modifications to the nebular hypothesis, incorporating the role of dust and friction in planet formation. 3 / 203. What are planetesimals? A. Small, rounded objects that form planets B. Planets C. Stars D. Galaxies Explanation: Planetesimals are the building blocks of planets, formed through the accretion of dust and gas in the early solar system. 4 / 204. What process significantly modified the composition of Earth’s atmosphere? A. Degassing B. Photosynthesis C. Solar winds D. Differentiation Explanation: Photosynthesis by early organisms released oxygen into the atmosphere, gradually changing its composition to the nitrogen-oxygen rich air we breathe today. 5 / 205. What is the name of the German philosopher associated with an early theory of Earth’s origin? A. Edwin Hubble B. Immanuel Kant C. Carl Weizascar D. Otto Schmidt Explanation: Immanuel Kant proposed an early and influential theory, later revised by Laplace, known as the Nebular Hypothesis. 6 / 206. What is the most popular argument regarding the origin of the universe? A. None of the above B. Big Bang Theory C. Steady State Theory D. Nebular Hypothesis Explanation: The Big Bang Theory is the prevailing model for the origin of the universe, explaining its expansion from an extremely hot, dense state. 7 / 207. What caused the loss of Earth’s primordial atmosphere? A. Solar winds B. Condensation C. Volcanic eruptions D. Photosynthesis Explanation: The intense solar winds from the early Sun stripped away Earth’s initial atmosphere of hydrogen and helium. 8 / 208. What is the primary source of oxygen in Earth’s atmosphere? A. Solar winds B. Degassing C. Volcanic eruptions D. Photosynthesis Explanation: Photosynthetic organisms, such as plants and algae, release oxygen as a byproduct of converting sunlight into energy. 9 / 209. What is the name of the process by which small planetesimals combine to form larger bodies? A. Differentiation B. Degassing C. Photosynthesis D. Accretion Explanation: Accretion is the process where planetesimals collide and stick together due to gravity, eventually forming planets. 10 / 2010. What is the name of the event that is believed to have initiated the universe? A. Big Bang B. Nebular Hypothesis C. Steady State D. Differentiation Explanation: The Big Bang is the prevailing model for the origin of the universe, describing its rapid expansion from an extremely hot, dense state. 11 / 2011. What is the name of the process by which gases were released from Earth’s interior? A. Differentiation B. Photosynthesis C. Degassing D. Condensation Explanation: Degassing is the release of gases, such as water vapor and carbon dioxide, from Earth’s interior through volcanic activity. 12 / 2012. What is the name of the large cloud of gas and dust that forms stars? A. Singularity B. Galaxy C. Nebula D. Planetesimal Explanation: A nebula is a vast cloud of gas and dust where stars are born through gravitational collapse and accretion. 13 / 2013. What is the name of the innermost layer of the Earth? A. Crust B. Mantle C. Outer core D. Inner core Explanation: The inner core is the Earth’s innermost layer, composed primarily of solid iron and nickel due to immense pressure. 14 / 2014. When did life first appear on Earth? A. 3.8 billion years ago B. 4.6 billion years ago C. 2.5 billion years ago D. 13.7 billion years ago Explanation: The earliest evidence of life on Earth dates back to around 3.8 billion years ago, initially in the form of simple, single-celled organisms. 15 / 2015. What is a light year a measure of? A. Time B. Density C. Distance D. Speed Explanation: A light year is the distance that light travels in one year, used to measure vast astronomical distances. 16 / 2016. What process led to the formation of Earth’s oceans? A. Photosynthesis B. Differentiation C. Condensation D. Degassing Explanation: As the Earth cooled, water vapor released from the interior condensed to form rain, which filled depressions and created the oceans. 17 / 2017. What is the name of the hypothesis that considered the universe to be roughly the same at any point in time? A. None of the above B. Big Bang Theory C. Nebular Hypothesis D. Steady State Theory Explanation: The Steady State Theory proposed a universe that had no beginning or end, with continuous creation of matter to maintain a constant density. 18 / 2018. What is the approximate age of the Earth? A. 13.7 trillion years B. 13.7 billion years C. 3.8 billion years D. 4.6 billion years Explanation: Scientific evidence suggests that the Earth formed approximately 4.6 billion years ago. 19 / 2019. What were the dominant gases in Earth’s early atmosphere? A. Hydrogen and helium B. Water vapor and ammonia C. Carbon dioxide and methane D. Nitrogen and oxygen Explanation: The Earth’s initial atmosphere was primarily composed of hydrogen and helium, similar to the composition of the early solar system. 20 / 2020. Who provided evidence for the expanding universe in 1920? A. Otto Schmidt B. Edwin Hubble C. Carl Weizascar D. Immanuel Kant Explanation: Edwin Hubble’s observations of galaxies moving away from each other provided crucial evidence for the expansion of the universe. Please insert your information to see your ranking अपनी Ranking जानने के लिए कृपया अपनी जानकारी भरे NamePhone Number Your score isThe average score is 60% 0% Restart quiz Category: Class 11 Geography Quizzes in English
