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Hydrogen and helium did not remain in Earth's early atmosphere primarily due to their low molecular weights, which made them susceptible to escape into space. The young Earth lacked a strong gravitational pull sufficient to retain these light gases, especially as the planet was still forming and had not yet developed a protective magnetic field. Additionally, the intense solar wind and radiation from the young Sun contributed to the loss of these gases. Over time, Earth's atmosphere evolved to be dominated by heavier gases like nitrogen and carbon dioxide.

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Is the sun breaking apart?

No, the sun is not breaking apart. It is a stable star that is undergoing nuclear fusion in its core, converting hydrogen into helium and releasing energy in the process. The sun is expected to remain stable for billions of years to come.


What are the major sources of C in our atmosphere?

How long does co2 remain in the atmosphere


What makes a star?

A star is made by hydrogen clumps in space that catch on fire. Inside a star at the core there is lots of compressed hydrogen and helium. Shortening the information, a star is simply compressed gas!


Will the sun age change if the hydrogen will get smaller?

The aging process of the Sun is primarily driven by the nuclear fusion of hydrogen into helium in its core, which is determined by the Sun's mass and composition. If hydrogen were to somehow become "smaller," it would not directly affect the Sun's age or its fusion process, as the fundamental physics governing nuclear fusion would remain unchanged. The Sun's lifecycle is dictated by its mass and temperature, rather than the size of individual hydrogen atoms. Therefore, the aging of the Sun would continue as expected regardless of changes in hydrogen size.


How long will the star vega live?

Vega is a relatively young star with an estimated age of around 455 million years. It is currently in the main sequence stage of its life, where it fuses hydrogen into helium in its core. It is expected to remain in this phase for several billion years before eventually evolving into a red giant.

Related Questions

Does the amount of hydrogen in the atmosphere remain constant?

Hydrogen rises above our atmosphere to the outer limit and then gets blown away by 'solar wind'. So it is decreasing.


Does steam from hot water create hydrogen for a helium balloon?

No. Steam is simply water in a gaseous state. The hydrogen and oxygen remain chemically bonded to one another.


What heavier element is created when hydrogen atoms fuse together in the suns core?

Normal "main sequence" stars fuse hydrogen into helium during most of the star's life. The core of a star gets so hot that the hydrogen atoms begin to fuse together. As hydrogen only has 1 proton when if fuses with another hydrogen atom it has 2 protons so has become helium.


What is the sun formed out of?

The Sun is made up mainly of hydrogen, less helium, and small amounts of heavier elements. Four hydrogen atoms fuse to from one helium atom, in this process a lot of energy & heat is released. The sun will remain stable until the whole hydrogen is converted into helium. When the total hydrogen is exhausted energy production stops in its core and thus the core starts shrinking.


If liquid nitrogen freezes everything why is itself a liquid?

liquid nitrogen will not freeze everything. Hydrogen and helium will remain a gas when exposed to liquid nitrogen.


How would earths atmosphere be different if organisms capable of photosynthesis not evolved?

It will remain as reductive atmosphere. Ther will be only gases like NH3, H2 , H2S. H2O. There would be no life


What rock is Sun made from?

The sun is not made of rock. It is made mostly of the gasses hydrogen and helium. The sun is far too hot for anything to remain solid.


The last two elements that a massive star produces are hydrogen and helium why is this the last reaction?

Hydrogen and helium are the lightest and most abundant elements in the universe. In the core of a massive star undergoing nuclear fusion, hydrogen and helium are fused into heavier elements like carbon, oxygen, and iron. Once the star reaches the stage where it can no longer sustain fusion reactions to produce heavier elements, hydrogen and helium remain as the last elements in its core before it undergoes a supernova explosion.


Are the sun and other stars made out of rocks and ice?

No. Stars are made mostly of hydrogen and helium and are too hot for any sort of rock or ice to remain solid.


To float in air a blimp could be filled with helium?

Yes, a blimp can float in the air when filled with helium because helium is lighter than air. This difference in density creates buoyancy, allowing the blimp to rise and remain aloft. Additionally, helium is non-flammable, making it a safer alternative to hydrogen, which was used historically but posed fire risks.


What will the helium become when it grows up?

Helium is an inert gas; it does not react in any chemical reactions. It does not form any molecules. Helium is formed in the Sun as the result of the fusion of hydrogen nuclei in nuclear fusion. In the cores of dying stars, helium will fuse into carbon and other heavier elements.


Are all the hydrogen of ethyl chloride equivalent?

Hydrogen remain hydrogen.