Compare and contrast disconformities and nonconformities.

A disconformity is where two sedimentary sequences are separated by a long time span and an erosional surface but with no difference in inclination between the two. A nonconformity is where a sedimentary sequence lies on top of much older igneous or metamorphic rocks.

Drought resistance because they are close to a lot of supplys 

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