Which Amount Indicates the Measurement of Pollutants in Parts Per

question 8

Multiple Choice

Which amount indicates the measurement of pollutants in parts per trillion (ppt) ? 

• A) one drop in 1 000 000 litres 
• B) one drop in 10 000 000 litres 
• C) one drop in 100 000 000 litres 
• D) one drop in 1 000 000 000 litres

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