Answer:
1. The hamburger came from Hamburg, Germany, and the hot dog came from Frankfurt. - compound sentence
A sentence which contains two independent clauses with related ideas is referred to as a compound sentence.
One way to punctuate a compound sentence correctly is to join the two independent clauses with a semicolon and a coordinating conjunction.
2.The idea of placing meat on a bun, however, came from the United States. - simple sentence
A simple sentence is a form of sentence which has one independent clause and has no dependent clauses. It can stand alone for its meaning as a sentence.
3. When the hamburger first arrived in the United States, it was eaten raw.- complex sentence
The complex sentence refers to the sentence which contains at least one dependent clause and an independent clause. A dependent clause is the clause which cannot stand alone in its meaning on the other hand independent clause refers to the phrase which can stand alone, though both have a subject and a verb.
4. The French still prefer their meat rare, but the Germans eat raw hamburger meat. - compound sentence
5. Hamburgers first became popular among German immigrants who lived in Cincinnati.- complex sentence