When did the large animals like mastodons begin to die out?

7500 bc
8000 bc
7200 bc

explanation:

select the correct answer from each drop-down menu.

different sources are aimed at different audiences. sometimes a source can be directed at more than a single group of usually aimed at the general population across the globe. some sources may have a very specific audience. be specifically aimed at students or scholars with a background in literature.

whose power in the senate is equal to the power of the speaker of the house?

this isn't a question and if you're going to list things be kind and use commas.

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