Question

In the following question, a sentence is divided into four parts (P,Q,R,S). Rearrange it in the proper sequence in order to make a meaningful sentence.
P: known bird species are declining in numbers, and
Q: approximately 70% of the world's nearly 10,000
R: roughly one of every eight (12%) of these bird species is threatened with extinction
S: mostly because of habitat loss, degradation, and fragmentation

• A. SRPQ
• B. QPRS
• C. QRPS
• D. SQRP

Hint:

When a sentence involves multiple statistics and clauses, look for connecting words like "and" to link parallel ideas. Phrases that provide a reason (starting with "because," "due to," etc.) often come at the end to explain the statements made earlier.

Answer 1

The Correct Option is B

Step 1: Understanding the Task
The task is to rearrange the four parts into a single, meaningful sentence about bird species.

Step 2: Finding the Logical Flow


Part Q starts with a statistic, "approximately 70% of the world's nearly 10,000". This phrase needs to be followed by what it is quantifying.

Part P provides the noun for the statistic: "known bird species are declining in numbers, and". This makes a logical pair Q-P: "approximately 70% of the world's nearly 10,000 known bird species are declining in numbers, and...".

The word "and" at the end of P indicates that a parallel idea or clause will follow. Part R provides this second clause, giving another statistic: "roughly one of every eight (12%) of these bird species is threatened with extinction". So, the sequence is Q-P-R.

Part S gives the reason for the phenomena described in the preceding parts, starting with "mostly because of...". A cause or reason is usually stated at the end of such a sentence. So, S is the concluding part. The sequence becomes Q-P-R-S.


Step 3: Constructing the Final Sentence
The complete sentence reads: "Approximately 70% of the world's nearly 10,000 known bird species are declining in numbers, and roughly one of every eight (12%) of these bird species is threatened with extinction, mostly because of habitat loss, degradation, and fragmentation."

Step 4: Final Answer
The correct logical sequence is QPRS. Therefore, option (B) is the correct answer.