drops of dust see what i did there ;)
Planet Earth formed from dust and gas in the solar nebula, not from drops of water. The dust and gas in the nebula gradually came together through a process called accretion, leading to the formation of larger and larger bodies that eventually became planets.
Water usually evaporates into warm air. The warm air holds more water than cold air. As the air rises it expands and cools and the water bearing capacity reduces. The water in excess of the maximum amount that can be dissolved in the air condenses around dust particles and becomes very small drops (clouds) or larger drops (rain)
by all he dust in the soler system
clouds
clouds
Testostrone
Testostrone
rock dust water
The drops of water form due to condensation. When the cold drink comes into contact with the warmer air around it, the water vapor in the air condenses into liquid water on the outer surface of the glass, forming the drops.
The answer to the analogy "water is to wet as dust is to what" would be dry. Water becomes wet when it comes in contact with it, similarly, dust becomes dry when it is not wet or has not come in contact with water.
Mostly gravity.
The water droplets will mix with the dust particles and bring the dust to earth, leaving the air less dusty.