Here's why:
* Formal writing is typically used for academic papers, official reports, legal documents, or other situations where a serious, objective tone and precise language are required. It often uses complex sentence structures, specialized vocabulary, and avoids personal opinions or casual language.
* Informal writing is used for personal letters, emails, blogs, and casual conversations. It can use simpler language, contractions, and a more relaxed tone.
Examples:
* Topic: The History of the Roman Empire
* Formal style: A research paper on the topic would use formal language, scholarly sources, and a neutral tone.
* Informal style: A blog post about a visit to Rome could discuss the Roman Empire in a more casual and engaging way.
* Topic: Climate Change
* Formal style: An official report on climate change impacts would use precise data and scientific terminology.
* Informal style: A blog post raising awareness of climate change could use more personal anecdotes and simplified explanations.
It's essential to consider:
* Audience: Who are you writing for? What are their expectations?
* Purpose: What are you trying to achieve with your writing?
In conclusion, any topic can be written in a formal or informal style, depending on the intended audience and purpose. The key is to choose the style that best suits your needs.