NTSE Stage-2 (National-Level) Scholastic-Aptitude & Language Comprehension: Questions 21 - 25 of 828
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Question number: 21
The following five sentences come from the paragraph. The first and the last sentences are given. Choose the order in which the three sentences (PQR) should appear to complete the paragraph.
S1: Preservation of environment is one of the most alarming problem of today-
S5: like smoke, noise, dirt, dust, chemicals and gases.
P: our atmosphere is being polluted by various factors
Q: and preservation of purity of environment.
R: most of the big cities are suffering from the problem of conservation
The sequence should be