Dimethicone, also known as polydimethylsiloxane, is a silicon-based polymer that is a man-made synthetic molecule made up of repeating units called monomers. Silicon is the second most abundant element in the Earth's crust after oxygen, and silicon dioxide is also known as sand, commonly found on beaches and shores.
In regards to a job, a refusal letter is written when a company offers a position to an individual who must refuse due to his or her circumstances, such as already having accepted another offer, or simply a lack of interest in this particular job.
In simplest terms, a letter of recommendation is a letter that makes a statement of support for a candidate. If, after doing a careful review of a candidate's strengths and weaknesses, you cannot write a supportive letter, it is important to have a candid discussion with the student. letter of recommendation can also be used to explain some weakness or ambiguity in a student's record. If appropriate-and probably after consulting the student-you might wish to mention a family illness, financial hardship, or other factor.