"It is a separate introductory section of a literary or musical work".
Aka: a before hand explanation of what's coming ahead, whether it tells the ending, or provides extra information that the actual work doesn't.
Was to explain to foreign nations why the colonists had chosen to separate themselves from Great Britain
Answer:
To sigh loudly would imply that you are being snotty and you want your way, but it is more personal. You may just be sighing to one specific person instead of trying to draw attention to yourself over a bunch of people, perhaps to gain their attention.
The climbing vine snaked up the tree trunk.
The participle in the sentence is A. CLIMBING.
Participle is a form of verb that is used in a sentence to modify a noun, noun phrase, verb, or verb phrase. It acts like an adjective or adverb.
Climbing is a participle because it is a form of verb that modifies a noun, vine.