0
The theories of planetary formation indicate that Earth's original form had more hydrogen and helium and less of the current atmospheric nitrogen and oxygen. Water may have been added by comets that Earth swept from its solar orbit.
Wiki User
∙ 15y ago
Add your answer:
Earn +20 pts
Has the Earth's atmosphere atmosphere always had the same composition?
yes
Does the composition of a substance always stay the same?
The composition of pure substances, such as elements and compounds, are always the same. The composition of mixtures can vary.
Est ce que l'atmosphère de la terre a toujours eu la même composition qu'aujourd'hui?
Was the earth atmosphere's composition always the same?
Is the law of definite proportions says that the composition of a compound always the same?
always the same
How is earth the same as venus?
Earth and Venus are similar in size, density, and overall composition.
Do compounds have varying compositions?
No. A compound will always have the same composition.
A classification for matter that always has the same composition?
pure substance
Why does the chemical composition of water always stay the same?
Because water is a compound, a type of pure substance, which has a definite composition.
What is the earth always looked the same?
earth always changes, so it won't look the same all the time.
What is matter that always has exactly the same composition classified as?
I believe it is an element.
If Earth's interior was the same composition as the crust what would Earth would most likely do?
Have a lower average density.
What is the common do venus and earth share?
Venus and the earth have the same surface composition and have an atmosphere which has a complex weather system.
