What specific linguistic features distinguish formal from informal registers in written Russian, and how do these affect the clarity and effectiveness of the communication?

Formal and informal registers in written Russian are distinguished by several linguistic features that significantly affect clarity and effectiveness. Formal Russian utilizes complex sentence structures, including participial and gerundial phrases, and subordinate clauses to convey nuanced meanings and precise relationships between ideas. Informal Russian tends towards shorter, simpler sentences with fewer embedded clauses. Formal Russian uses a more extensive and specialized vocabulary, avoiding colloquialisms, slang, and jargon. Informal Russian incorporates everyday language, including idioms, ....