Are Bounderies are common noun

Answer 1

Yes, the noun 'boundaries' is a common noun, the plural form of the singular noun 'boundary'; a general word for a line or other indicator that defines one area from another; a general word for a point or limit that defines where two things become different; a general word for limits that define acceptable behavior; a word for any boundaries of any kind.

A common noun is capitalized only when it's the first word in a sentence.