Pyro involves heat, I don't know if that's one of your options though
"A. a giant snowman" would constitute the adverb phrase in this sentence. In general this phrase comes after the subject noun, but not in all cases.
I would say that the answers are C and A.
"Primarily" indicates what the main purpose of the sheet is (which helps maintain high grades) and "Furthermore" adds to the original thought.
Answer:
History (from Greek ἱστορία, historia, meaning "inquiry; knowledge acquired by investigation")is the study of the past. Events occurring before the invention of writing systems are considered prehistory. "History" is an umbrella term that relates to past events as well as the memory, discovery, collection, organization, presentation, and interpretation of information about these events. Historians place the past in context using historical sources such as written documents, oral accounts, ecological markers, and material objects including art and artifacts.
