Directions: In this section, each item consists of six sentences of a passage. The first and sixth sentences are given in the beginning as S1 and S6. The middle four sentences in each have been jumbled up and labelled as P, Q, R and S. You are required to find the proper sequence of the four sentences and mark your response accordingly on the answer sheet.

S1. Researchers are closely monitoring the Arctic ice melt due to global warming. 

S6. This cycle accelerates the warming effect, posing a significant threat to global climate stability. 

P. This darker ocean surface absorbs more sunlight rather than reflecting it, as the ice did.

Q. One of the phenomena under scrutiny is the ice-albedo feedback mechanism. 

R. As ice melts, it exposes the darker surface of the ocean underneath. 

S. The absorption increases the temperature, leading to more ice melt.