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When a heavy rainstorm results in water greater than 2 inches, the water flows over the top of the inner container and into the overflow can, which is 4 inches taller than the inner container. The observer measures and records the amount of rain in the inner container and empties the inner container. Then, the observer carefully pours the water from the overflow can into the inner container, measures it and records it. The observer adds the two recorded totals together to obtain a final amount of rainfall.

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Q: How is rainfall measured if it exceeds two inches?
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