What is the central idea of paragraph 4? The Dust Belt is a strip of dry land that covers many continents.

Droughts happen when there are long periods of time during which there is very little rainfall.

Dust storms are a problem not only in Africa and China but also in Australia and the United States.

A large part of Earth’s population is harmed when droughts cause farmable land to become unusable.

an argumentative essay presents objectively a topic and its main characteristics. besides, it states all this information and facts by giving authentic and substantiated proof to the audience. by contrast, a persuasive text purpose is to convince the audience about some facts by presenting them according to his/her emotions and feelings. the main purpose of a persuasive text is to convince the audience to agree with the author´s opinion. on the other hand, in the argumentative essay, the author leads the writer to recognize his/her point of view as the correct one.