Final answer:
The best text structure for Anita's article on increased regulation of greenhouse gases and air quality is the problem-solution format, which allows the definition of the issue and the proposal of solutions along with statistical evidence for support.
Step-by-step explanation:
Anita is writing an article about how increased regulation of greenhouse gases leads to higher air quality. The type of text structure that would best fit this article is a problem-solution format. This structure allows the writer to clearly define and explain the issue, which in this case is the negative impact of greenhouse gases on climate change and air quality, and then propose and detail potential solutions and regulations that could mitigate these effects.
To effectively use a problem-solution structure, Anita could provide a synthesis of information from different sources to build a strong argument for action against climate change. Addressing possible objections to her argument also helps to reinforce her points by preemptively responding to critiques. In addition, incorporating statistics as evidence, with appropriate APA citation, can provide a factual basis for her claims and strengthen her article's persuasiveness.