The Amazon River is deep and wide enough to be , but it’s seldom used by large commercial ships because it flows through few cities. A. impassable B. navigable C. charted D. developed

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

Because they have free health care and is a very nice country : )