Answer:
Toothpastes generally contain the following components: Water (20–40%) Abrasives (50%) including aluminum hydroxide, calcium hydrogen phosphates, calcium carbonate, silica and hydroxyapatite. Fluoride (usually 1450 ppm) mainly in the form of sodium fluoride.
Answer: After world war II
Explanation:
Political science and comparitive politics changed after world war II, there was a better view to how politics was now seen instead of the descriptive and atheoretical knowledge that was held.
IS THE "NEW DEAL" SOCIALISM? A SOCIALIST LEADER ANSWERS; Norman Thomas Says No -- That What Roosevelt Has Done Is To Lay the Foundations for a Structure of State Capitalism.