a.
Interpretation:
The purpose of glycerol in toothpaste should be explained.
Concept Introduction:
Toothpaste consists of numerous ingredients of various kinds with a specific function of each. Some add flavor, some provide fluorides, some add aroma etc. All these ingredients are tested rigorously to make sure it is suitable for human use.
b.
Interpretation:
The purpose of sodium fluoride in toothpaste should be explained.
Concept Introduction:
Toothpaste consists of numerous ingredients of various kinds with a specific function of each. Some add flavor, some provide fluorides, some add aroma etc. All these ingredients are tested rigorously to make sure it is suitable for human use.
c.
Interpretation:
The purpose of sodium dodecyl sulfate in toothpaste should be explained.
Concept Introduction:
Toothpaste consists of numerous ingredients of various kinds with a specific function of each. Some add flavor, some provide fluorides, some add aroma etc. All these ingredients are tested rigorously to make sure it is suitable for human use.
d.
Interpretation:
The purpose of potassium nitrate in toothpaste should be explained.
Concept Introduction:
Toothpaste consists of numerous ingredients of various kinds with a specific function of each. Some add flavor, some provide fluorides, some add aroma etc. All these ingredients are tested rigorously to make sure it is suitable for human use.
e.
Interpretation:
The purpose of hydrogen peroxide in toothpaste should be explained.
Concept Introduction:
Toothpaste consists of numerous ingredients of various kinds with a specific function of each. Some add flavor, some provide fluorides, some add aroma etc. All these ingredients are tested rigorously to make sure it is suitable for human use.
f.
Interpretation:
The purpose of hydrated silica in toothpaste should be explained.
Concept Introduction:
Toothpaste consists of numerous ingredients of various kinds with a specific function of each. Some add flavor, some provide fluorides, some add aroma etc. All these ingredients are tested rigorously to make sure it is suitable for human use.
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