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Spectral lines are caused by electrons within atoms being excited up energies levels by absorbing specific frequencies of light (this produces absorption lines- dark lines in an otherwise continuous spect...

Firstly, you should identify key textual evidence that you can use to answer the question. Look through key quotes from the text and find some that include symbolism or imagery. Now, you need to analyse <...

Ask student what causes charge, i.e. motion of electrons.

So answer is that electrons move away from the object leaving it positively charged, or move onto a neutral object leaving it negatively ch...