The united states fought an unsuccessful campaign to support democracy in -

a. cambodia
b. laos
c. vietnam
d. thailand

which accurately describes the soil nutrients and fertility situation in southeast asia?

a. rain forests' lush growth depletes soil, but volcanoes enrich soil
b. rain forests' lush growth enriches soil, but volcanic soil is infertile
c. neither rain forests nor volcanic areas have soil suitable for agriculture
d. both rain forests and volcanic areas have soil suitable for agriculture