The portrait fell down is that an advreb or preposition phrase

It is an adverb phrase.

Explanation:

Adverb:

It modifies a verb, adjective, another adverb or group of words. In this example adverb down is modifying verb fell.

Preposition:

Typical definition of preposition in most of the dictionaries/online resources include that a preposition is used before non, noun phrase, pronoun or -ing form of verb, And they usually show a relationship between two nearby words.

In this example, there are no nearby two words between which down has to show relationship. Let's complete this sentence, for instance, the portrait fell down on the table, or the portrait fell down in the tub. We have to use a preposition on or in to show portrait's relation with table or tub. This shows, since there is no word to show portrait's relation, so no preposition is used.

the theme of a story can be applied to

explanation:

mark brainliest and have a great day!

one thousand and one nights, also known as arabian nights is a collection of stories whose basic structure is that of embedded narrative. this technique refers to a main story which works as the common frame - or framing narrative - for the other stories, and then this series of stories which are connected to the main one. this technique can also be referred to as a story within a story. the stories stem from the original tale, some begin and end on their own, some are connected to the previous or following one, by means of questions that are answered in the subsequent tale, or characters which reappear.