Sun contain mostly hydrogen and helium.
As a result of the thermonuclear reactions in the Sun the chemical composition is variable.
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A plant cell wall is mostly cellulose (C6H10O5).
Amphiboles are minerals containing mostly silicon, oxygen, iron, and magnesium.
Mostly in medicine there is Penicillin; Which is a type of mold and some drugs :(
The composition named "Morning Mood" by Edvard Grieg is about the rising of the sun in the early morning hours. It is a composition mostly played by alternating the flute and oboe.
No, melting is a physical change, not a chemical change. When the sun heats up and melts a crayon, it changes from a solid to a liquid state, but the chemical composition of the crayon remains the same.
Our Sun is mainly Hydrogen, which it burns via Fusion into Helium.To consider further, have a crack at nucleosynthesis in an online encyclopedia.
The composition of the moon mostly resembles the Earth's mantle.
The chemical composition remain unchanged.
Chemical composition of the dwarf planet makes it reflect certain wavelength of light coming from the sun.
The mantle is the Earth's layer that is most homogeneous in composition. It is mostly made up of solid rock and minerals, with relatively uniform density and chemical composition throughout.