How did life on Earth come about

Updated on science 2024-06-08
13 answers
  1. Anonymous users2024-02-11

    How did life on Earth come about?

  2. Anonymous users2024-02-10

    In ancient times, there was a lot of water on the earth, and the atmospheric content was mainly methane, ammonia, and hydrogen.

    Water vapor, these gases produce chemical reactions when they encounter lightning, producing the most basic substances of life--- amino acids, and life is born, and later due to evolution, from aquatic to terrestrial, from low to high, until today.

    Take the example of the evolution of life on Earth:

    1. There is a belief that after an alien object hits the Earth, the organic molecules on the object are born to the Earth. The process of organic matter production on this celestial body is roughly the same as the following two mechanisms.

    2. Oxygen, nitrogen, hydrogen, carbon and other elements on the earth form proteins under the action of the sun's ultraviolet rays and thunderstorms; It is also a coincidence that the earth is at the right distance from the sun, so there is life. Life then evolves further due to the constraints of the environment.

    Then after n billion years of evolution, humans were born.

    Three: Billions of years ago, Earth's weather contained much less oxygen than it does now, and the mushrooms produced during volcanic eruptions were about 200 degrees Celsius warmer than they are today. This condition is very conducive to the synthesis of organic polymers and amino acids from a variety of substances in the mushroom cloud.

    These substances fall to the ground, and after years of interaction, they can synthesize RNA molecules that have the ability to replicate themselves, making the emergence of primitive cells possible.

  3. Anonymous users2024-02-09

    How did life on Earth come aboutOr related to lightning, Venus and Mars have missed their chances.

  4. Anonymous users2024-02-08

    How did life on Earth come about?

  5. Anonymous users2024-02-07

    Ask God, and maybe it will work out.

  6. Anonymous users2024-02-06

    Billions of years ago, there were a large amount of carbon dioxide, nitrogen and other gases and some water vapor in the atmosphere of the earth, and later the earth's temperature dropped, and the water vapor turned into water and formed the sea. After processes such as lightning and volcanic eruptions, through a series of chemical reactions, amino acids are formed, and finally proteins are produced, and the ocean at that time was like a hot pot of soup, pregnant with primitive life. Primitive life was microorganisms, and later, organisms evolved into two types, one containing chlorophyll and the other being heterotrophic animals.

    2. The other theory is that life on earth comes from space. According to scientific and research meteorites, some meteorites have carbohydrate compounds, and some are not found on earth. Perhaps by chance, meteorites brought life to Earth.

  7. Anonymous users2024-02-05

    (1) Human exploration.

    Organisms cannot be produced from non-living matter on the earth at present, and organisms at present can only be produced through reproduction.

    b) Primitive Earth.

    1 High temperatures, thin crust, primitive atmosphere, and later water.

    2 Original atmospheric composition: methane, hydrogen, water vapor, carbon dioxide, anxia, and ozone layer.

    iii) The origin of life on Earth.

    1 Inorganic Matter Small Molecule Organic Matter Larger Molecular Organic Matter Macromolecular Organic Matter Macromolecular Organic Matter Forming Boundary Film Primitive Life.

    2 The birth of life is the result of chemical evolution.

    iv) several major years.

    The primitive Earth was formed 4.6 billion years ago.

    The primordial ocean was formed 3.8 billion years ago.

    3.5 billion years ago, primitive life was formed.

  8. Anonymous users2024-02-04

    Although life could not be formed on the primitive earth, the organic matter that made up life could be formed. Scientists speculate that the primordial atmosphere was subjected to the long-term action of natural conditions such as high temperatures, ultraviolet rays, and thunder and lightning, which formed many simple organic matter. Later, the temperature of the earth gradually decreased, and the water vapor in the primitive atmosphere condensed to form rain that fell to the ground, and this organic matter followed the rain into lakes and rivers, and eventually collected into the primitive ocean.

    It was about 1 billion years after the formation of the earth that primitive life gradually formed.

  9. Anonymous users2024-02-03

    I think that the original man lived on the moon, and one day the weather on the moon was so bad that people couldn't stand it, so they came to the earth and started killing dinosaurs.

  10. Anonymous users2024-02-02

    Where did the "life" on Earth come from? The answer may surprise you!

  11. Anonymous users2024-02-01

    There are a lot of cells in the ocean, and even now, they will evolve and evolve, and in a few years they may be another world.

  12. Anonymous users2024-01-31

    They all evolved from apes, and although this concept is well known, there are still many people who support mythology.

  13. Anonymous users2024-01-30

    The most primitive life on Earth is made up of carbon and isolated organic matter. After a long period of evolution and evolution, a wide variety of species have been formed.

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