How did life come about? How is life formed?

How did life on Earth come about?

The conditions for the existence of life on Earth:

External conditions: a relatively stable and safe cosmic environment.

1.Stability of the sun – provides light and heat.

2.Safe interplanetary space – orbits are coplanar and codirectional, and large and small planets go their own way.

Self Condition: Temperature – The Earth is at a moderate distance from the Sun, making the average temperature on the Earth's surface moderate.

Necessary for life: Atmosphere - The volume and mass of the earth are moderate, allowing a large amount of gas to accumulate and form an atmosphere.

3.Alteration of the composition of the atmosphere by the action of organisms: water-crystalline water vaporization of the primordial ocean.

The period of earth formation refers to the geological time from the solidification of molten material on the surface to the formation of sedimentary rocks, which is manifested as:

1.The molten material solidifies and shrinks, forming rift valleys and mountains on the surface. Cosmic celestial bodies collide, forming large potholes on the surface.

2.As the temperature decreases, the flow of water generated during the solidification of the molten material converges into the rift valleys and large potholes, and the resulting gas remains on the earth's surface, forming an atmosphere.

3.The Earth's core captures the unevenness of the cosmic matter, and the uneven temperature of the earth's surface produces atmospheric flow.

4.During this geological period, gullies, mountains, and large potholes were formed on the surface, and with water and atmosphere, weathering, denudation, and transport occurred, and sedimentary rocks began to form.

5.Primitive life proteins appeared, and prokaryotes (bacteria, cyanobacteria) evolved

At the beginning of the formation of the earth, the temperature was not.

The normalization system is high, but with the passage of time, it gradually cools, and at the same time the gas escapes from the interior to form the atmosphere, and after a long period of clarification and change, oxygen appears, and there are conditions for life to survive.

The first life was due to the accidental combination of atoms to form molecular substances, which contained heritable substances, which combined with each other to form more complex substances, and eventually produced DNA, that is, deoxyribonucleic acid, DNA can produce mRNA through transcription, and can replicate itself, which is the life characteristics of the simplest living organisms in the living world, bacteria.

These simplest forms of life originally survived and developed in the ocean, and after a long period of reproduction and evolution, more advanced life forms appeared, until we evolved into ourselves, human beings, and all life was nothing more than the chance encounter between one atom and another.

But the evolutionary process is actually a lot of accidental coincidences, quite dramatic, there is a story that describes this accidental, dramatic process, a group of monkeys banging on the typewriter, most of the monkeys are typing unwritten nonsense, but one monkey is confused and typed out a sonnet by Shakespeare, which is a miracle, and the birth of man is similar to this miracle story.