Yes, that is exactly what you should tell them. 1  If two clauses are connected with a coordinating conjunction, it's a compound sentence. 2  If two clauses are connected with a subordinating conjunction, it's a complex sentence.
Trains were first- 1784, but cars weren't invented until 1890.
William Murdoch built a steam-powered carriage in 1784. So, in fact, the first car invented or made in all of history was also the first steam car. Oliver Evans was granted the first American automobile patent in 1789. In 1805 Evans demonstrated the first American car (arguably) which was also an amphibious vehicle.illiam Murdoch built a steam-powered carriage in 1784. So, in fact, the first car invented or made in all of history was also the first steam car. Oliver Evans was granted the first American automobile patent in 1789. In 1805 Evans demonstrated the first American car (arguably) which was also an amphibious vehicle.