Verified Answer :

The answer would be paragraph blocks. To complete the sentence "Two or more paragraphs that explain and develop a complex, key idea are called paragraph blocks" Definition of block paragraph. : a paragraph (as in a news story) written as an independent unit to allow its deletion or rearrangement in the order of paragraphs without loss of coherence.

Answer

Paragraph blocks

Explanation

Paragraph blocks are written independent units to allow its rearrangement in the order of paragraphs without loss of  its logical quality and consistent. They are groups of words put together to form a group that is usually longer than a sentence.There are four types of paragraphs which are namely narratives,expository,descriptive and persuasive.

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