Which area of mexico listed below does not have volcanic soil?
altiplano central
baja california
the coastal plain
yucatán peninsula

The Yucatán Peninsula does not have volcanic soil. All other possible answers have it.

2. x2 + 8x + 12 = 0 to prove: x = -6 or x = -2

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