The Columbian Exchange is marked by the exchange of plant and animal life between the Old and New Worlds. The exchanges<span> of plants, animals, diseases and technology transformed European and Native American ways of life.</span>
The British news oscillated the American public opinion(s) in favor of the Allies. They also had like cultural 'bonds' too.
By insuring bank deposits up to $5,000.
The FDIC was a part of the New Deal programs of legislation during the presidency of Franklin Delano Roosevelt (FDR). FDR signed the measure into law in June, 1933. The program went into effect as of January 1, 1934. Banks soon learned they needed to enroll in FDIC or customers wouldn't come to their banks.
<span>The Union (North) won the battle over the Confederacy (South).
About 7,500 soldiers were killed from both sides of the armies.
The site of the battle is </span><span>where Lincoln gave the Gettysburg Address.</span>
<u>"confirming that it is not an online source" </u>is wrong. The problem is not the fact the source is online, but if it's credible.
<u>"determining whether or not it is well-known" </u>well-known sources might still be wrong. Being known does not make something true.
<u>"d. determining whether it is a secondary source" </u>again, it has nothing at all to do with the validity of the source.
So the answer is:
b. checking its conclusions against other sources
The best way is to check the source and compare to different ones that talk about the same subject. Comparing different conclusions of different authors and seeing different points of view about the same thing is often the best way.