Answer:
Introduction
Explanation:
grabs and hooks the reader's attention that engages your reader from the get-go.
Synonyms: consequently, so, as a result, hence, thus, accordingly, for that reason, ergo, that being the case, on that account;
A discrete quantity of energy proportional in magnitude to the frequency of the radiation it represents
The exclamation points should not be used in formal writing and professional writing.
