Two related independent clauses can be joined by a semicolon and a comma conjunctive adverb dependent clause prepositional phrase

Conjunctive Adverbs

Explanation:

Conjunctions combine words, phrases and clause. They must be followed by a comma, to transition the thoughts.

In other words, they are used to connect two ideas into one full sentence.

Independant Clauses, are already two full ideas, so cannot be combined with a comma. They would already make two full sentences

Adverbs or words that add relevant details to an existing thought. They change or add meanings to the actions in a sentence.

So, when you need to join two independent clauses using a conjunctive adverb you can combine and transition the two thoughts; while also giving them significant details. This proves they have a reason to be connected

conjunctive adverb

Explanation:

Took the test #Reliable source

The guy above me is reliable too, not knocking anyone.

about the letter or who wrote the letter