Subjects tell the listener and the reader whom or what the sentence is about. The subject is that part of a sentence which names a person, thing, or idea. e.g. Every complete subject contains a simple subject. The simple subject, which is a noun or pronoun, is the most important word in the complete subject.
The USPS considers a postcard to be any single rectangular piece of paper that is at least 3 1/2 inches high by 5 inches long by 0.007 inch thick' and no more than 4-1/4 inches high by 6 inches long by 0.016 inches thick.. The post office considers all papers outside of these dimensions to be letters.
Standard & First Class Requirements & Automated (Bulk Rate) Mail. Standard Postcard - a standard postcard mails First Class at current rate of 34Â¢. Standard Sizes - minimum is 3Â½â³ x 5â³ / the maximum size for mailing at the 34Â¢ rate is 4Â¼â³ x 6.â³. Paper Thickness - must be at least 0.007â³ and not more than 0.016â³ in thickness.