a)He believes it is stealthy and all-encompassing.
He describes the fog as being everywhere when he says its on the window-panes, in the drain pools, and "into the corners of the evening". All-encompassing means that it is everywhere, surrounding everything. The way the speaker leaves out any mention of sound or noise makes it seem as though this fog moves quietly. The description of the fog going to the window-panes, the corners, and the pools gives it a quick stealthy feel.
Carelessly/ careless / carelessness
Answer: he gets scared and in trouble
Explanation:
Tone is the attitude of the author towards a text , while mood is the feelings that the reader has towards a text .