For me, the hardest part of writing is finding the words to match what I am thinking. Often times I find myself staring at a blank page trying to display my goal in what I am writing while still making it my own. Usually, I write the best when I am passionate about the topic of my work. This helps me feel good about what I am writing, find the words a bit easier, and write more because I am knowledgeable about said topic.
A few of the steps I take to writing something good are reviewing what I know about what I am writing about, making a rough draft and going over it, and taking my time to figure out what I can improve on as I go along. As far as helping a struggling writer, I could find out what is blocking them when they are writing. If they are finding it difficult to set up their paragraphs then I would guide them through that. If they are struggling with something like not being able to relate to what they are writing or not connecting to it then I would suggest they do more research and/or think about little things in their life that could connect to said topic.
It means to disturb "the air." For example, the piercing cries is what the air is being disturbed by, so in general, it was silent when all of a sudden it has become disturbed or interrupted. I think this is a metaphor but I'm not sure.
The most appropriate linking word for this sentence would be, letter B. because. This linking word is used to introduce or phrase or just simply expressing an explanation.