Directions: The following sentence is jumbled up. You are required to re-arrange these parts, which are labeled P, Q. R and S to produce a correct sentence. Choose the proper sequence accordingly.

There have been and on coastal areas (P) several studies of the impact (Q) especially on food production (R) of global warming on India.(S)

The correct sequence PSRQ forms: 'There have been several studies of the impact of global warming on India especially on food production and on coastal areas.' This arrangement is grammatically correct and logically flows from the introductory phrase to the main clause, then to specific focus areas. Other sequences don't produce coherent or grammatically correct sentences.