Multiple choice

For which of the following purposes is rain gauge used?

  1. To measure the amount of rainfall

  2. To measure the direction of rain

  3. To detect the presence of pollutants in rain

  4. To detect the occurrence of rain
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A Correct answer
Explanation

A rain gauge is a meteorological instrument used to measure the amount of liquid precipitation (rainfall) over a set period. It collects and measures rainfall depth, typically in millimeters. It does not measure rain direction, detect pollutants, or merely detect rain occurrence - its primary purpose is quantitative measurement of rainfall amount.

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