Im dumb so help

A(n) __ clause should always be separated from the rest of the sentence by commas

At last it was settled by lot that zeus should reign supreme in heaven, whilst aides governed the lower world, and poseidon had full command over the sea, but the supremacy of zeus was recognized in all three kingdoms, in heaven, on earth (in which of course the sea was included), and under the earth. zeus held his court on the top of mount olympus, whose summit was beyond the clouds; the dominions of aides were the gloomy unknown regions below the earth; and poseidon reigned over the sea. what element of a myth does this excerpt contain? an example of an historical event a lesson about human behavior an explanation of an event in nature a story about gods or goddesses

In 250-300 words, explain how the theme of social justice is explored in the novel. {to kill a mockingbird}