Many ecologists and atmospheric scientists believe that the earth is nearing several ecological tipping points. Many social scientists believe that society is nearing some political and ethical tipping points. What is a tipping point

hello,

answer: a federal government has final authority on interstate/inter provincial  and international affairs, a confederation is one where the central/national government or authority is governing body what does not have final say over the same matters. hopefully this and i will try again if you don't like this answer : )

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answer; identity theft;

answer; ///population;

answer; the responsibility of all person, including civilians and contractors;