COHERENCE AND COHESION
Coherence means the connection of ideas at the idea level, and cohesion means the connection of ideas at the sentence level. Basically, coherence refers to the “rhetorical” aspects of your writing, which include developing and supporting your argument (e.g. thesis statement development), synthesizing and integrating readings, organizing and clarifying ideas. The cohesion of writing focuses on the “grammatical” aspects of writing.
In conclusion, coherence is quality of the text and cohesion is the join sentences. The coherence includes relative clauses, prepositions, conectors, adding, comparing, reformulating, etc.
WHAT IS THE DIFFERENCE?