In the following question, the first and the last parts of the sentence/passage are numbered 1 and 6. The rest of the sentence/passage is split into four parts - P, Q, R, and S. These four parts are not given in their proper order. Read the sentence/passage and find the most logical order of the parts between 1 and 6.
1. Climate change remains one of the biggest challenges of our time.
P. Shifting rainfall patterns are already affecting agriculture.
Q. Melting glaciers are disrupting water supplies in many regions.
R. Its impacts are visible across the globe.
S. Rising sea levels threaten low-lying coastal areas.
6. Urgent global collaboration is essential to tackle it.

Correct option is B

Option RPQS is the correct order of the given sentences.
· R generalizes the idea after (1): “Its impacts are visible across the globe.” This broad bridge sentence naturally follows the topic sentence and prepares for examples.
· P gives the first concrete impact on land-based systems (rainfall patterns → agriculture), a logical starting point because it’s immediate and widely relatable.
· Q adds a freshwater/cryosphere impact (melting glaciers → disrupted water supplies), expanding the scope from fields to regional hydrology.
· S culminates with the oceanic/coastal impact (rising sea levels → low-lying areas), a high-stakes, global-risk example that smoothly leads into (6) calling for urgent global collaboration.
· Thus, the coherent flow is: 1 – R – P – Q – S – 6 (general claim → varied concrete impacts → concluding call to action).