Which economic activity has lagely driven devolopment of modern southeast asian city's

Trade routes

Trade routes were used for the commercial transport of cargo. This logistical network allowed goods to reach distant markets. One trade route contains arteries that are connected to smaller networks of commercial routes.

Early in history, Asia needed good maps because of the extensive overland and maritime trading between lots of states as well as kingdoms.

  b.

there are isolated pockets of farming, generally around rivers and oases, which are used for irrigation.

answer; decipher the motives for why people behave the way they do;