Which method of separation would you use when working in the garden and trying to separate the dirt from the weeds? filtration , distillation, evaporation, or sifting?

Sifting is the best method cuz all the dirt will be carried by wind.

Elements are identified by the nuclei of the atoms of which they are made. For example, an atom having six protons in its nucleus is carbon, and one having 26 protons is iron. ... Heavy elements can be formed from light ones by nuclear fusion reactions; these are nuclear reactions in which atomic nuclei merge together. This is how they are formed