If the movie is perhaps a documentary, then it is telling you factual information of actual events (includes pictures or pictures of actual documents or events); this makes it a primary source.
If the movie is based off of real events, has factual information, but also has added information to create a well-rounded plot, this makes it a secondary source.
Answer:The sinking of US ships by german u boats, the battle of the atlantic, and the atlantic charter were all events that moved the US closer to war.
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Answer:
According to Boundless Chemistry, the nucleus (center) of the atom contains the protons (positively charged) and the neutrons (no charge). Atoms are made up of protons and neutrons located within the nucleus, including electrons that are in orbitals that surround the nucleus.
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I think that the answer is a. and c. and d. because that is what my teacher told me....so yeah I hope this helped you