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The air quality in Singapore deteriorated to a hazardous level in September 2015, forcing the city-state to shut its schools for the first time in 12 years. This was due to
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SNAP National Parks and Wildlife Sanctuaries
SNAP Indian National Static GK
SNAP Banking Computer Knowledge
SNAP Probability, Combinatorics
SNAP Functions, Graphs and Statistics
SNAP Averages, Ratio and Proportion
SNAP Grammar and Sentence Correction
SNAP Logarithms, Surds and Indices