I think it's called "<span>combustion." are there any answer choices though?
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Iron atom is oxidized or you can say it loses 2 electrons.
Yes this is correct. Change the number of protons and you have a different element
Si se Casaron por vienes separdos no tienes porque compartir.
The speed of sound depends upon
a) air density
b) temperature
c) pressure
d) humidity
so there can be different reasons that the instrument goes out of tune outside.
However in the given options the best is The speed of sound decreases with a decrease in temperature.
