What makes up the vast majority of the mass in a cubic meter of a typical cumulus cloud?

Answer

The invisible atmospheric gases surrounding the droplets

The air volume occupied by a cloud contains a massive quantity of surrounding invisible gases (primarily nitrogen and oxygen); the actual liquid water content contributes only a tiny fraction of the total mass.

What makes up the vast majority of the mass in a cubic meter of a typical cumulus cloud?

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NASA Spotlite: What are clouds made of? - YouTube

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