Answer:
Informal: Colloquial
Simple
Contractions and Abbreviations
Use of imperative voice
easy to read
Formal: no abbreviations
Third person
Passive Voice
brief, to the point
Structured pattern
Formal language
Step-by-step explanation:
The differences between formal and informal writing can be drawn clearly on the following grounds: Formal writing is that form of writing which is used for the business, legal, academic or professional purpose. Formal writing must use a professional tone, whereas a personal and emotional tone can be found in informal writing