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Yes. You can use paper filter
In medicine, specific gravity is used to measure the function of kidneys. Decreased specific gravity means that there is a lower concentration of solutes in urine, which may indicate decreased kidney function or renal failure.
it has holes that are bigger than water but smaller than what they filter
The Endodermis, the cells filter solutes from the water and allow passage through the root hairs onward to the vascular tissue
Anisotropy in chemistry usually refers to an anisotropic filter. It filters particles with increasingly smaller spaces so the proximal regions filter out large particles and distal regions filter out the smaller ones. This means the filtration is directionally dependent.
5 microns is less than 10 microns so a 5 micron filter removes smaller particles.
no filter because for smaller fish it can hurt or even kill them and for the old filter use bigger fish
Either less ripple voltage with the same filter capacitance, or similar ripple voltage with smaller filter capacitances (and thus physically smaller filter capacitors).
a ten micron filter will remove smaller particles from the system, but will also clog faster
Because the molecule is smaller than than the filter paper pores.
A good filter has pores smaller than 20 nanometres.