My best guess is Convergence or Texture Gradient
Carbon mioxide or something
Answer:
Calcium
Explanation:
Calcium is an essential part in the strength of bones & teeth's, for it is a key component in the creation of the structures as well as the outer hardness of the two.
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The answer is containing nomination campaign and general election campaign. In addition, one strategy that campaigns use to switch the media is staging media events. The aptitude of an office holder to fend off challengers is recognized as the scare-off effect. The federal election directive is the bureaucratic agency in custody of monitoring campaign activity.