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Earth's Origin and Evolution — Geography STD 11 Arts — Question

Gujarat BoardEnglish MediumSTD 11 ArtsGeographyEarth's Origin and Evolution3 Marks
Question
“Emergence of Life” - Write a short note.
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Answer

  • The early atmosphere on Earth was hostile to the origin and development of living things.
  • So the origin of life became possible in the final stages of the origin of the earth.
  • Modern scientists consider the origin of life to be a chemical process.
  • The first complex biological molecule emerged.
  • Life originated from this mass of atoms.
  • During about $3.8$ billion years, the first microscopic life on Earth would have started in the oceans.
  • Early organisms were made up of unicellular cells and were known as amoebae.
  • These microscopic creatures were like boneless locha.
  • Over time, soft-bodied animals evolved into vertebrates, such as vertebrates and crabs without jaws.
  • The evolution of vegetation is also millions of years old.
  • The first oceans in the ocean are grasses and shrubs, followed by flowering plants, vines and trees.
  • This was followed by the development of vertebrates, docks and tails.
  • This was followed by the emergence of giant birds, such as giant dinosaurs, which changed their anatomy.
  • Animals came into existence as the terrestrial environment adapted.
  • These animals began to give birth to chicks instead of laying eggs.
  • They took care of the cubs after they were born. Monkeys originated about $40$ million years ago.
  • Over time, chimpanzees, gorillas, and balloons developed evolved brains.
  • Scholars have identified them as half-humans or capybaras, as the characteristics of vixit monkeys are similar to those of humans.

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