Final answer:
The trading bloc that includes nations separated by water is ASEAN (Association of Southeast Asian Nations).
Step-by-step explanation:
The trading bloc that includes nations that are separated by water is ASEAN (Association of Southeast Asian Nations).
ASEAN is a regional intergovernmental organization comprised of ten Southeast Asian countries, including Indonesia, Malaysia, Philippines, Singapore, Thailand, Brunei, Vietnam, Laos, Myanmar, and Cambodia.
With its member nations spread across the Southeast Asian region, ASEAN is an example of a trading bloc in which countries are separated by water.