What was the goal of President Nixon's order of increased bombing raids over North Vietnam?

The graph shows a demand curve. which most likely accounts for the changes shown on the demand curve?

Give an example of a situation in which an individual's pursuit of economic self-interest may not benefit but instead harm the rest of society

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.