Answer: The answer should be A: Precipitation.
Explanation: When we take a look at this question, it mentions that there is dew, fog, and clouds on the planet. Infiltration would have probably been evaporated from the ground and became a cloud. The dew and fog would be the condensation. The astronomers notice that there is never any rainfall, and precipitation in the water cycle is rainfall. So therefore, the missing part of the water cycle would be precipitation
A. ratio of surface area to volume
The surface area to volume ratio limits the size of a cell.
Well , the student has not done justice to the question technically. He/she classified examples of cells entirely on other basis other than the observations seen on the prepared microscopic slides
<h3>Prepared microscopic slide</h3>
Prepared microscopic slides are set of slides that have been previously mounted by an individual who is a professional in the field.
It process involve immersing the sample ( either before or after fixation or mounting) in a dye solution and then rinsing and observing the sample under a microscope.
Learn more about microscopic slides:
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