What physical property would be the most useful in the separation of very fine saw dust and salt?
the particle size of the components
the density of the components
the solubility properties of the components
the magnetic properties of the components

the solubility properties of the components

explanation:

earth's surface is mainly heated by the absorption of infrared radiation from the sun.

evaporation occurs because molecules in liquid water are warmed ( usually by the sun) and vibrate quicker, becoming less dense and rise.

condensation occurs because molecules in water vapor are cooled and therefore vibrate more slowly thus becoming more dense and eventually fall to earth.

lines of equal barometric pressure on a weather map are called: isobars : lines of equal temp on a weather map are called: isotherms.​

3.2x10^7