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Every star is different in this regard. Our Sun started out mostly hydrogen, but with traces of heavy elements; this is how we know that our solar system came from the remnant of several supernova explosions.
Today, after about 5 billion years, the Sun is now about 70% hydrogen and 28% helium, and 2% other heavier elements.
What else can I help you with?
What percentage of Earth's atmosphere does oxygen take up?
Oxygen makes up about 21% of Earth's atmosphere.
What will happen if we do not take care of the earths atmosphere?
If we do not take care of Earth's atmosphere, it may lead to increased global warming, climate change, air pollution, and negative impacts on human health and ecosystems. This could result in more extreme weather events, rising sea levels, loss of biodiversity, and overall degradation of our environment.
What layer of earths atmosphere is only place where weather occurs?
The layer of Earth's atmosphere where weather occurs is the troposphere. This layer is closest to the Earth's surface and extends up to an average altitude of about 8 to 15 kilometers. It is where all our weather phenomena, such as clouds, rain, and storms, take place.
What percentage does potassium take up the atmosphere?
Potassium is not a gas, it is a metal. It is found in mineral salts, not the atmosphere. It can be found in the atmosphere in small enough particles that move via wind currents, ocean spray, ect. but it is not a component of the atmosphere.
Which of the layer of earths atmosphere do virtually all weather phenomena take place?
The layer of Earth's atmosphere where virtually all weather phenomena take place is the troposphere. This layer extends from the Earth's surface up to an average altitude of about 6-10 miles (10-16 km). In the troposphere, most of the Earth's weather systems, clouds, precipitation, and atmospheric mixing occur.
What causes all of the changes that take place in earths atmosphere?
what causes all of the changes that take place in earths atmosphere is the tilt of the earths axis
Where does condensation in the water cycle take place?
It takes place on Earths atmosphere =)
Where does condensation take place in water cycle?
It takes place on Earths atmosphere =)
What does not take place in earths atmosphere?
Black holes, super novas, and lots of other stuff
What does it take for aluminum to break down?
it takes the heat of a meteorite coming through the earths atmosphere
What percentage of Earth's atmosphere does oxygen take up?
Oxygen makes up about 21% of Earth's atmosphere.
How long does it take to travel to space?
well, to get out of earths atmosphere into the edge of space is about 5-8 minutes
How much helium would it take to lift 2000lbs?
to lift 1 kg or 2 pounds you need 0.16 kg of helium so for 2000 pounds you need 160 kg of helium or 320 pounds at 1 atmosphere
What process provides most of the oxygen found in earths atmosphere?
Growing more trees as trees take in carbon dioxide and releases oxygen that we use for breathing. So. I guess Afforestation provides most of the oxygen found in the earths atmosphere.
How does recycling conserve natural recources?
it allows us to reuse materials that take hundreds of years to decompose and release fumes to the earths atmosphere
How long does it take a rocket at average speed to escape earths atmosphere?
It takes around 8 minutes for a rocket to reach space and escape Earth's atmosphere. This can vary slightly depending on the specific rocket and its speed.
How do you get rid of helium?
Helium is a non-toxic, inert gas, so it naturally dissipates into the atmosphere over time. However, if you want to quickly remove helium from a container, you can simply open the container and allow the gas to escape into the air. Make sure to do this in a well-ventilated area.
