Sign In
Not register? Register Now!
You are here: HomeEssayLife Sciences
3 pages/≈1650 words
6 Sources
Life Sciences
English (U.S.)
MS Word
Total cost:
$ 21.6

Which Sphere, Hydrosphere or Atmosphere, Came First? (Essay Sample)


The task is to Write an essay (1500 – 2000 words) answering the question “Which sphere – i.e., the hydrosphere or the atmosphere – came first, assuming that the lithosphere had already been created?”.
To summarize, the atmosphere was the first of these two resources to emerge and develop when the earth began to cool. It's also believed that if there hadn't been an atmosphere to keep the water from escaping into space, the seas would have evaporated. Vapor and gasses that were released during the degassing of the earth's interior produced the first atmosphere. Hydrogen, methane, water vapor, and carbon oxides were present in this early version of the earth's atmosphere.
The water on the earth, which constitutes the hydrosphere, resulted from the earth's continuous cooling. The water vapor in the previously existent atmosphere condensed as the earth's surface continued to cool. Around four billion years ago, this condensation resulted in the formation of the world's seas and oceans. Early living forms, such as blue-green algae, developed to the point where they could use the sun's energy to create food through photosynthesis in these early oceans. This mechanism is thought to be the catalyst for the present-day existence of oxygen in the atmosphere. Therefore, the atmosphere was first, followed by the hydrosphere.


Task: Write an essay (1500 – 2000 words) answering the question “Which sphere – i.e., the hydrosphere or the atmosphere – came first, assuming that the lithosphere had already been created?”. Provide at least 5 “evidences” to support your answer.
In planet formation, the atmosphere must form first before liquid water could exist. Without the former, water will evaporate due to solar winds and radiation, as well as a lack of appropriate atmospheric pressure. Thus, Earth's atmosphere came first before the hydrosphere.
Earth is thought to have originated around 5 billion years ago, according to a web article titled “The Atmosphere” (n.d.). The solar wind swept off atmospheric gases that had accumulated when Earth was new and tiny. If gases did accumulate, they were evaporated by collisions, particularly the one that resulted in the Moon's creation (Desonie, 2019).
The early atmosphere of Earth originated approximately the same period as the planet itself (Rens, n.d.). The vapor and gases that were released during the planet's inner degassing formed a thick atmosphere in the first 500 million years. Volcanoes were erupting all over the planet. Extreme volcanism occurred on the Early Earth during differentiation, when the mantle experienced enormous heating and fluid-like motion. The majority of the atmosphere was most likely formed through degassing early in the Earth's history. The gaseous components within Earth were expelled as a result of this ongoing volcanism, a process known as outgassing. As a result of this process, these gases accumulated above the surface, forming Earth's first stable atmosphere (“The Atmosphere,” n.d.). However, Desonie (2019) argued that scientists have determined that the amount of gas that accumulated to create the early atmosphere could not have been solely due to volcanic eruptions. Asteroids and comets collided often, bringing in gases and ices from other parts of the solar system, including water, carbon dioxide, methane, ammonia, nitrogen, and other volatiles. Nonetheless, this primitive atmosphere was far from our modern atmosphere. The gases that may have formed consisted of hydrogen, water vapor, methane, and carbon oxides; ni

Get the Whole Paper!
Not exactly what you need?
Do you need a custom essay? Order right now:

Other Topics:

  • Chemistry in Healthcare, Climate Change, and Environment Protection
    Description: Chemistry is a science branch dealing with the structure, composition, and properties of compounds and elements, the energy absorbed or released by these elements and compounds, and how they change under various circumstances. Every substance produced naturally or artificially consists of atoms, sometimes ...
    1 page/≈550 words| 4 Sources | APA | Life Sciences | Essay |
  • Nutrition: Exploring Food Science and Technology (Article Summary)
    Description: Food science and technology is a branch of science that applies various scientific disciplines such as chemistry, biology, and physics to the study of food. This field is concerned with understanding the physical....
    2 pages/≈550 words| 1 Source | APA | Life Sciences | Essay |
  • Ecotourism is Always Good for a Country
    Description: Ecotourism is Always Good for a Country Life Sciences Essay...
    1 page/≈275 words| 2 Sources | APA | Life Sciences | Essay |
Need a Custom Essay Written?
First time 15% Discount!