Proteins are a type of Macromedia and is made up of sub units that are called amino acids.
To separate the pebbles you should hand pick it,
meaning-from the word itself, you don’t have to use any kind of instrument but
your hand.
On the other hand, to separate the mud you can use
decantation or sedimentation or filtration.
To separate the husk you have to use sieving.
for those who were involved in the earthquake in Haiti was a major life change
