It is a COMPOUND SENTENCE as it is made up of two independent clause (a clause has a subject an a predicate and it does not need the other clause in order to convey meaning). This independent clauses are joined by the coordinating conjuction “and”.
Paragraphs 2 and 3 address the counterclaim of the author’s argument by stating a common reason that people voluntour and then shoot them down with facts from their research.