The current population of the United States of America is 325,372,521 as of Thursday, January 12, 2017, based on the latest United Nations estimates.
Pollution and it being near the equator also some of it is
located in the tropic of cancer making some parts of china have a tropical climate
hope that answers your question :)
The corona is an envelope of ionized gases that extends out past the sun.
The corona is the third layer of the Sun. This layer takes the out most portion of the Sun's atmosphere. It is consisted of ionized gases that normally extend around one million kilometers from the Sun's surface.