<span>Because they believed America had a duty to teach" less civilized" people how to live properly.</span>
"<span>They found the soil unusable, and they had to rely on fishing and hunting for food" is generally true, although some people were able to soil rich enough for farming. </span>
A veto enables the president to reject a bill passed by the legislature
Usually demand refers to someone tell someone else what to do, or how to do it. For example "Give me the remote." could be demanding.