Weather Quiz: Clouds

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SPEC scientists, Tara Jensen and Pat Zmarsley, monitor a Cloud Particle Imager during MWISP.
2. Cloud droplets are very tiny, usually less than 3 micrometers. How many cloud droplets are needed to make the average raindrop?

A. 1 Thousand
B. 100 Thousand
C. 1 Million
D. 1 Billion

Choose any one of the four answers above.