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Subjects

Geography

Evolution of the earth

In this Class 11 Geography topic from “The Origin and Evolution of the Earth,” students trace how Earth formed and changed over geological time. They learn about the early solar nebula, the separation of materials within the young planet, the development of the crust, atmosphere and oceans, and the gradual emergence of life. The topic connects major stages of Earth’s evolution with the geological processes that shaped its present structure.

Hard · Level 5 · 25 questions

Practice questions

01Removal of hydrogen and helium most strongly supports which analysis?

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02What is the most correct basis for linking water vapour in the secondary atmosphere with the beginning of the hydrosphere?

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03If Earth had not cooled enough what obstacle would arise in the vapour-ocean relation?

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04What is the most analytical reason for atmospheric composition change after ocean formation?

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05Why are early oceans considered a platform for pre-life chemical processes?

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06When chemical evolution is placed before biological evolution which logical sequence is formed?

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07Which relation between simple early life and low free oxygen is correct?

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08Why can photosynthesis be seen as a biological control on Earth's atmosphere?

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09Which cause should be placed first to understand the formation sequence of ozone layer?

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10Which best describes the contribution of the ozone layer to expansion of land life?

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11What was the dual role of oxygen in development of complex life?

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12What is the strongest reason to call biosphere a result of other spheres?

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13If solid crust had not formed what would be the effect on permanent hydrosphere development?

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14What is the process difference between core formation and atmosphere formation?

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15What is the correct analysis of difference between early Earth's surface and interior conditions?

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16Before hydrosphere formed what cooperation between atmosphere and surface was necessary?

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17How should carbon dioxide in early atmosphere be understood differently from modern pollution?

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18How can presence of methane and ammonia be linked with absence of ozone?

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19Why is it incomplete to link gravity only with weight in Earth's evolution?

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20Which feature of early Earth's evolution is shown by the giant impact idea of the Moon?

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21If outgassing occurred but gravity was insufficient what problem would the secondary atmosphere face?

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22What is the correct way to read rocks as evidence of Earth's evolutionary sequence?

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23If early oceans did not exist what would be the most direct effect on pre-life chemistry?

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24What is the most correct example of two way relation between atmosphere and biosphere?

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25Why was ozone layer development important before complex life expanded on Earth?

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