Answer: Creep
Explanation:
A scope creep is the expansion of a project beyond the original goals and objectives, so when listing exclusions in the in the project plan it would help reduce it potential.
The answer to the question about why would nationalism lead to intolerance and persecution of other ethnic or national groups is explained below.
Explanation:
When a nation promotes its own interests, over the interests of other nations, it is called as nationalism. Nationalism creates a feeling of inferiority within the minorities of a country, which may lead to intolerance among them.
Countries usually contain diverse group of people, who are from different backgrounds, ethnicity, etc. Large group of people in a country or region creates pride among them of their sharing of common heritage, history, backgrounds, ethnicity, etc. This thing may leave many minorities alone and make them feel inferior in the same region or country, which would no doubt lead to intolerance among them.
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Then he would know when they were under attack and he could let everybody know.
Simply, they united because coming together would be the only way to defeat Persia, or else they would lose separately. Hopefully this helped!