Nato is
a. an agreement between the u. s. and russia to limit chinese involvement in european affairs
b. a cultural organization addressing mutual interests among north and south american countries
c. a military and political alliance between a number of european countries along with the u. s. and canada
d. an arm of the european union that finance failing member nations

  C. A military and political alliance between a number of European countries along with the U.S. and Canada

Explanation:  NATO is an acronym for the North Atlantic Treaty Organization. Members of this military alliance are the United States, most European Union member, even some non-EU members, Canada and Turkey. The main goal of this military alliance is the defense of any alliance member in the event of an attack, or even help in the event of a natural disaster. Initially, when the alliance was founded in 1949, it was collective security in the event of any action threatening security by the Soviet Union.

dirty, contaminated water

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mice infestation,

etc,

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