Rearrange the parts of the sentence in correct order
Due to poor organic matter
P-in soil is below the required
Q-incorporation, organic carbon
R-level in most parts of India

Let's determine the logical order of sentence segments starting from "Due to poor organic matter":
"organic matter" needs a noun or gerund modifier to follow logically. Part Q starts with "incorporation,", making the phrase "Due to poor organic matter incorporation,".

Part Q continues with a new subject clause "organic carbon". This subject requires a verb or prepositional phrase.

Part P begins with "in soil is below the required", where "is" acts as the main verb for the subject "organic carbon". So, Q connects directly to P.

Part R completes the sentence with "level in most parts of India", defining what it is below ("below the required level").

Hence, the correct sequence is Q → P → R.
Full Sentence: "Due to poor organic matter incorporation, organic carbon in soil is below the required level in most parts of India."