The Formation And Evolution Of The Earth Essay

The evolution of that formation created the world we live in today. The earth has been in existence for a little over four point five billion years to be exact. The earth shares a story that we are still exploring. From its colorful coral reefs in bright and vibrant

Throughout history, science has always faced challenges from outside groups who work to mold science to their beliefs, ignoring evidence and commonly held facts. Following in the legacy of the flat world and an Earth centered Universe, young Earth creationists bend science to fit their explanations of the Earth’s origin and timeline. Evidence for the ancient age of the Earth is present in every discipline of Earth science and directly refutes claims made by young Earth creationists. It is important to examine these claims and rebut them, as their denial of proper scientific understanding hampers progress and has wider implications for the future of our society.

Evolution is the key thread running throughout this text, signifying its importance to the author and readers. It is emphasized greatly because that is how we understand ourselves, our past, present and even the future. Through evolution we have discovered when the first organisms came around and how modifications led to the first fish to migrate to land about 375 million years

Chemical evolution is the main exploratory clarification for the birthplace of life. Like every scientific theory, the hypothesis of chemical evolution has an example part that makes a case about the common world and a procedure segment that clarifies that patter. The example part is that notwithstanding little atoms, complex carbon-containing substances exist and are needed forever. The procedure part is that in Earths early history, straightforward concoction mixes consolidated to frame more mind boggling carbon-containing substances before the advancement of life. The hypothesis keeps up that inputs of vitality prompted the development of progressively complex carbon-containing substances, coming full circle in an intensify that could recreate

The old-Earth evolution and young-Earth creation debate has been one that has gone on for centuries. Each viewpoint seeks to give an answer to life’s most difficult questions or origins and how the Earth came to be what it resembles today. While the Young Earth viewpoint has remained constant and unchanged throughout the centuries the Old Earth view seems to be continually evolving as new discoveries tend to discredit previous assumptions. One certainty is that both viewpoints take a dogmatic stance against each other in regards to the interpretation of scientific evidence. The purpose of this paper is to compare old-Earth and

Earth as we all know it's Associate in Nursing improbably complicated and fragile network of interconnected systems that have developed slowly over the last four.5 billion years more or less. From the ashes of the massive Bang, this planet emerged as a mass of energy and components. From that new born mass of energy and components evolved structured, dynamic systems of solids, liquids, and gasses. The evolution of this planet continued to unfold over billions of years in such a novel method that eventually conditions arose with the flexibility to foster life.

This chapter tells us how the earth formed and all of the different cycles it went through to get where it is today. It goes on to illustrate the beginning of life from single cell to multi-cell. How life would end and then come back with different creatures each time.

In the old Earth view of the original creation of Earth we are told about the

The earth was formed by countless collisions of meteors/molten rock which made it a world of fire and molten rock.

1. As our proto-sun was forming and spinning, what was happening that allowed earth to form? (i.e. the original state of the solar system was essentially dust particles spinning around the sun – how did that become a large terrestrial planet?)

Current geological indicators suggest that parts of Earth’s crust had already solidified by 4.4 billion years ago, which is not long before oxygen started showing up in ancient rocks. Furthermore, other microfossils (or chemical evidence suggesting their presence) have been discovered in the past year by research scientists, and possibly date as far back as 4.28 billion years ago.

The Earth formed 4.6 billion years ago through collisions in the giant disked shape cloud created from the Bing Bang. It is a dynamic planet, with

Many believe that while Early Earth was undergoing accretion, it had a massive collision with a large body- as huge as the size of Mars (see Fig. 2.). This collision produced a shower of debris around the Earth and thrusted it into space (Grotzinger and Jordan, 2010). “According to this theory, the Earth reformed as a boy with an outer molten layer hundreds of kilometres thick- a magma ocean.” (Grotzinger and Jordan, 2010). Marshak (2007) deduced that the Moon was formed from the accretion of the debris floating around the Earth. He also suggested that the Moon’s composition resembles that of the mantle because of the way the Mars-sized body collided with the Earth. From this, we can assume that when the collision happened- it did not disturb the Earth’s iron-nickel core that was already formed. The formation of the Moon must have happened 4.51 billion years ago- between the early stages of the accretion of the Earth which was 4.56 billion years ago,) and “the formation of the oldest Moon rocks brought back by the Apollo astronauts (4.47 billion years ago,)” (Grotzinger and Jordan, 2010).

In the beginning, impacts of very large objects were very common, some as big as Mars or half the diameter of Earth. Collision of large bodies orbiting Earth played a role in its initial tilt of spin axis, the length of its day, direction of spin, and the thermal state of the interior. This violent bombardment continued for 3.9 billion years. Final composition of Earth had several crucial structural effects. Enough metal was present early on to allow formation of an iron and nickel rich core that is partially liquid. This enables a magnetic field that deflects some harmful radiation from reaching the surface. Enough radioactive elements are also present in the core to maintain long term heating which drives plate tectonics. At 4.5 billion years ago, Earth separated into different layers: an inner core (made of iron and nickel), a land layer of lower density material, and an early atmosphere of carbon dioxide and steam. At 3.9 billion years ago, surface temperatures dropped to a range where liquid water could be maintained. Liquid water makes up approximately 75% of the planet's surface today which is roughly what it was then. The most important requirement for life as we know it is the presence of liquid water. This is the one substance that can serve as a universal solvent - that is, it can dissolve and transport minerals and

Life has continually perplexed and fascinated individuals since the dawn of mankind. The subject’s complexity is so great even over the course of human existence only a minute fraction of its mysteries have been unraveled. A phenomenon which has always intrigued scientists is the origin of life on Earth, and in recent years significant advancements have been made in the understanding of this enigma. This essay will briefly outline two theories regarding life’s origin on Earth to further comprehend why an explanation for this phenomenon has been so difficult to reach.