Question

In the following item, the passage consists of six sentences. The first and sixth sentence are given in the beginning as S1 and S6. The middle four sentences in each have been removed and jumbled up. These are labeled P, Q, R, and S. You are required to find out the proper sequence of the four sentences and select the appropriate option as given.
S1: If we dump sewage into a stream, on a small scale, the stream dissolves it and purifies it.
S6: For this overwhelming kind of pollution we need to coin a new term which we call super-pollution.
P: It can no longer deal even with the small quantity of sewage which it once accepted without difficulty.
Q: Ten miles downstream the water is pure again.
R: The system has broken down.
S: But if we dump large quantities of sewage, we end by killing the purifying bacteria and then the stream has lost its power to purify.

The proper sequence should be:

• A. Q-S-P-R
• B. R-S-Q-P
• C. P-R-Q-S
• D. P-Q-R-S

Answer 1

Answer: (A)

Q-S-P-R

Here, Q must follow S1 as it continues with the same idea introduced in S1. Q should be followed by as it introduces a "but" to the idea introduced in S1 and continued in Q. P further supports S. Then, R sums all these up and perfectly links the rest with S6. QSPR is the most logical sequence. So, the answer is option A.