this is my own answer so im not sure! if im wrong search it through the internet!
you can not distinguish a solid material in a mixture because it already dissolved in the liquid in a solid in solid mixture you can distinguish the solid.you can also separate them to distinguish the solid through filtration and other
Everyone needs safety
Soil erosion is the displacement of the upper layer of soil, it is one form of soil degradation.
The increase in magnifying power of the objective depends on its resolving power. This is the minimum distance by which two points must be separated in order for them to be perceived as two distinct points rather than as a single fused image.