The major air pollutants from coal-fired power plants are?( )
A. Sulfur dioxide, nitrogen oxides , soot
B. Sulfur dioxide, carbon oxide, hydrocarbons
C. Hydrogen sulfide, carbon dioxide, nitrogen oxides
D. Soot, carbon oxide, hydrocarbons
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When did case "2013 Beijing Air Pollution Incident" occur?( )
A. In January 12th in 2013
B. In January 16th in 2013
C. In January 20th in 2013
D. In January 24th in 2013
How many levels are there in the Air Quality Index()?( )
A. Four
B. Five
C. Six
D. Seven
The ambient air color is orange which means that AQI is?( )
A. 51-100
B. 101-150
C. 151-200
D. 201-250
Of the following environmental problems, the one that does not belong to environmental pollution is ( ).
A. The noise from the rolling mill spread to the nearby residential area
B. Waste water from the nitrogenous fertilizer plant is discharged into a nearby river
C. The waste gas from the coking plant is discharged into the sky
D. Serious water and soil erosion in the Huangtu Plateau region
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