All scientific models, including economic models, simplify reality in order to improve our understanding of it. a. true b. false

Did the writers of the declaration of independence accomplish their goals (did we get our independence and the new government we wrote about)?

Which at first gave the south an edge in the civil war? a. a better-equipped army b. the invention of ironclad ships c. the drafting of slaves into the army

Are people more motivated to change from positive or negative experiences, like slavery, womens rights, and any other historical movements/moments? i need more factual information than opinions.