The greenhouse effect involves warming of Earth's surface and the . Group of answer choices mesosphere stratosphere troposphere thermosphere ionosphere

Answerhave flowing water either episodically or during only a portion of the year;

A,f, g are the points

The us is first  the  u.s. economy  remains the  largest in the world  in terms of nominal  gdp. however, the  u.s. economy  loses its spot as the number one  economy  to china when  measured  in terms of  gdp  based on ppp. in these terms, china's  gdp  is $23.19 trillion exceeds the  u.s. gdp  of $19.42 trillion