In which situation is appropriate to write using informal language?

a a legal document to present in court
b a cover letter for a job applictaion
c a scientific research article
d a postcard to a friend

The appropriate situation to write using informal language would be in option d, a postcard to a friend.

The situation that is appropriate for writing using informal language is (d) a postcard to a friend. When writing a postcard to a friend, the tone is typically casual and friendly. Informal language allows for a more relaxed and personal communication style, which is suitable for this type of correspondence.

To determine the appropriate language to use in different contexts, it is important to consider the purpose and intended audience of your writing. Here's a breakdown of the appropriate language for each of the given situations:

a) A legal document to present in court: In this scenario, it is crucial to use formal and precise language. Legal documents demand a high level of professionalism and clarity to ensure the accuracy and effectiveness of the content.

b) A cover letter for a job application: A cover letter for a job application should be written in a formal and professional manner. It serves as an introduction to a potential employer, and you want to convey your skills, qualifications, and interest in a serious and polished way.

c) A scientific research article: When writing a scientific research article, the language should be formal, objective, and authoritative. It is important to use precise terminology and maintain a professional tone throughout the article, as it is meant to convey research findings to the scientific community.

So, although informal language is suitable for a postcard to a friend, it is important to use appropriate and formal language in other contexts, such as legal documents, job application cover letters, and scientific research articles.

The situation in which it is appropriate to write using informal language is when writing a postcard to a friend.