C sending harassing emails
More information is needed to help answer your question :)
1.) From 1931 to 1973, the Empire state building was the tallest building in the world, a title now claimed by Burj Khalifa in Dubai.
2.) The Eiffel Tower was named in honor of its architect, Gustave Eiffel, who lived from 1832 to 1923.
Billy Jo thinks that the sky is blue because the sun paints it each morning.
<em>Billy Jo thinks that the sky is blue</em>. This is the independent clause. It has meaning by itself.
..<em>because the sun paints it each morning</em>. This is the dependent clause. It does not have meaning by itself. It needs the independent clause. It gives extra information -reason- related to the information in the independent clause.