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When the Earth formed around 4.5 billion years ago, its atmosphere was primarily composed of hydrogen and helium, along with trace amounts of methane, ammonia, water vapor, and carbon dioxide. Over time, volcanic activity released gases, leading to the development of a secondary atmosphere dominated by nitrogen and carbon dioxide, with water vapor condensing to form oceans. Today, the atmosphere is approximately 78% nitrogen, 21% oxygen, and 1% other gases, including argon and carbon dioxide, reflecting significant changes due to biological processes and geological activity.

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How the earth atmosphere originate?

The Earth's atmosphere was formed from gases released by volcanic activity early in its history. This atmosphere underwent changes due to interactions with the Earth's surface, such as the development of photosynthetic organisms that produced oxygen, leading to the composition we have today.


What was the composition of the atmosphere when the earth was first formed?

When Earth was first formed, its atmosphere was composed mainly of hydrogen and helium, with smaller amounts of methane and ammonia. Over time, volcanic activity introduced water vapor, carbon dioxide, and nitrogen, eventually leading to the atmosphere we have today.


How was the earth's atmosphere made?

Outgassing from volcanoes formed the Earth's original atmosphere. Later green plants converted large amounts of carbon dioxide in the atmosphere to create the modern atmosphere with roughly 20% oxygen, 80% nitrogen, and tiny amounts of other gasses.


Where did the gases which formed the earths earliest atmosphere come from?

The gases that formed Earth's earliest atmosphere primarily originated from volcanic outgassing, which released water vapor, carbon dioxide, ammonia, and other gases trapped in the Earth's interior. Additionally, some gases were contributed by the solar nebula from which the Earth formed, as well as impacts from comets and asteroids that brought volatile substances. Over time, these gases accumulated, creating a primitive atmosphere that was vastly different from what we have today.


How did the primitive atmosphere differ from atmosphere today?

As opposed to today's atmosphere, the Earth's early atmosphere would have been quite impossible for human life to thrive in. Today the atmosphere consists primarily of Nitrogen, Oxygen, and Carbon Dioxide, but early Earth's first atmosphere was probably made of Hydrogen and Helium.


How the did primitive atmosphere differ from your atmosphere today?

As opposed to today's atmosphere, the Earth's early atmosphere would have been quite impossible for human life to thrive in. Today the atmosphere consists primarily of Nitrogen, Oxygen, and Carbon Dioxide, but early Earth's first atmosphere was probably made of Hydrogen and Helium.


How did the primitive atmosphere differ from the atmosphere today?

As opposed to today's atmosphere, the Earth's early atmosphere would have been quite impossible for human life to thrive in. Today the atmosphere consists primarily of Nitrogen, Oxygen, and Carbon Dioxide, but early Earth's first atmosphere was probably made of Hydrogen and Helium.


What volcanic process most likely formed Earth's atmosphere?

Outgassing from volcanic activity, specifically through the release of water vapor, carbon dioxide, and other gases from the Earth's interior, is believed to have played a significant role in shaping Earth's early atmosphere. Over time, this outgassing contributed to the development of the atmosphere we have today.


What is the proportion of oxygen in the atmosphere today?

About 21% of the Earth's atmosphere is oxygen.


The water on Earth today is what?

the water the earth was formed with


What is wrong with earths atmosphere today?

Today the Earth's atmosphere is being destroyed by all the pollution by cars and power plants.


How has earth atmosphere changes since it first formed?

The earths atmosphere has significantly altered over the years. The process of the earth's atmosphere was recognized and evolved 2.7 billion years ago, forming the nitrogen-oxygen atmosphere that exists today. This change enabled the formation and beginning of the ozone layer (which along with magnetic fields) block solar radiation.