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Chemistry, 24.09.2020 16:01 jaallen3679

2. A student wants to find out if the rainfall in her town contains pollutants. The best way to gather this information would be to collect:
A:
One sample on one rainy day.
B:One sample a day on several rainy days.
C:Several separate samples on one rainy day.
D:Several separate samples on several rainy days.

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