Concept:Precipitation is atmospheric moisture that reaches the ground in liquid or solid form.
Explanation:Water vapour condenses and may form clouds.
When moisture becomes heavy, it falls to the Earth's surface as precipitation.
Hail and snow are solid forms of precipitation that fall from clouds.
Dew forms when water vapour condenses directly onto cool surfaces at night, so it is also treated as a form of atmospheric moisture.
Dust, however, consists of solid particles of soil or other matter carried by the wind.
It does not come from condensed atmospheric water vapour.
Therefore, dust cannot be called a form of precipitation.
Answer:B. dust