Answer:
- Sedimentation: Sedimentation is the process of allowing particles in suspension in water to settle out of the suspension under the effect of gravity.
- Decantation: Decantation is a process for the separation of mixtures of immiscible liquids or of a liquid and a solid mixture
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Incomplete contribution happens when there is a limited supply of air so only half is much oxygen adds to the carbon forming carbon monoxide
The *independent* variable is the one that you always can control. However, the dependent variables are not since they **depend** on another.
