The correct answer to this open question is the following.
Although you did not clarify what kind of temples among the many ancient temples you are referring to, we can say the following.
The main purpose of the archaeologists who first investigated the old temples, in general, was to dig in deeply to know the purpose of the temples, why the temples were built in the first place, what was his main use, how ancient people built temples with the lack of proper technology or tools, and how these old temples had endured the test of time.
Even to this modern-days, scientists and archeologists do not have a true and definitive statement about pyramids, temples, ziggurats, and other ancient temples and sites, it is just theories.
And regarding your second question, the plural of the word sarcophagus is sarcophagi.
<em>He lost every election until the Presidency. - </em>False <em>- </em>He was Member of the U.S. House of Representatives from Illinois's 7th district from 1847 to 1849 before elected president in 1860.
<em>He was the first Republican Presidential nominee ever elected. - </em>True<em> - </em>The Republican party was founded in 1854 ideologically influenced by anti-slavery ideals and pro- economic reforms. The first president nominated was Abraham Lincoln in 1860.
<em>He led the U.S. through the Civil War, embracing anti-slavery and resulting in a stronger federal government. - </em>True <em>- </em>Abraham Lincoln was the president during the entire Civil War and fought against the separatists from the south. They embraced the anti-slavery movement and, winning the battle, kept the Union between the states. By doing so, he also strengthened the federal government.
<em>He lost his second election to Ulysses S. Grant. - </em>False <em>- </em>He won his second presidential term in 1864 against the democratic candidate McClellan.
<em>He rooted out rampant inflation. - </em>True <em>- </em>He installed the Greenback dollar. A paper based money, with ornate design, identification number and limit counterfeiting used during the Civil war.
Which gives us: 2,3 and 5 correct.