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A group of pupils studied how some pollutants affected water, air and soil. They recorded their results as shown in the table below.
‘Yes’ means pollutes.
‘No’ means does not pollute.
Which one of the following statements is true according to the information in the table?
A.Each pollutant pollutes both water and air.
B.Water pollutants always pollute soil.
C.Water and soil pollutants did not pollute air.
D.Air and soil put together have more pollutants than water.