Answer:
3.Sieving is used to separate substances that are of different sizes. In this method a sieve is used. The smaller components of the mixture can pass through the pores of the sieve whereas bigger components of the mixture are retained by the sieve. ... And hence, the substances are separated.
4.Evaporation is used to separate a soluble solid from a liquid. For example, copper sulfate is soluble in water – its crystals dissolve in water to form copper sulfate solution. During evaporation, the water evaporates away leaving solid copper sulfate crystals behind.
Explanation:
pa brainlist po pls
