Table of Contents
What are the four stages of Earth evolution?
A newly-formed terrestrial planet, such as the Earth or Venus, goes through four distinct stages of development: Differentiation, Cratering, Flooding and Surface Evolution.
How was life first created?
After things cooled down, simple organic molecules began to form under the blanket of hydrogen. Those molecules, some scientists think, eventually linked up to form RNA, a molecular player long credited as essential for life’s dawn. In short, the stage for life’s emergence was set almost as soon as our planet was born.
How did the Earth’s evolution take place?
Further, continuous volcanic eruptions contributed water vapor and gases to the atmosphere. The earth’s oceans were formed within 500 million years from the evolution of the earth. About 3,800 million years ago, life began to evolve and the process of photosynthesis got evolved about 2,500-3,000 million years ago.
What is the origin of the Earth?
Earth formed around 4.54 billion years ago, approximately one-third the age of the universe, by accretion from the solar nebula. Volcanic outgassing probably created the primordial atmosphere and then the ocean, but the early atmosphere contained almost no oxygen.
What is the evolution of life in the ocean?
After a slow start, the evolution of life on earth began to speed up. The oceans were home to lots of varied forms of life. Sponges, simple jellyfish, ancient worms, starfish, and coral, all began to appear after splitting and evolving separately from their multi-celled ancestors.
What did earth look like in its early life?
For nearly 4.5 billion years the story of earth goes. Through much of its lifespan, the planet looked vastly different than today. In its early life, there was no water, no oxygen, no land, and no life. The earth then formed in violent circumstances. Its earliest period remained chaotic and semi-apocalyptic for millions of years.