A cross-border region named for Singapore, Johor, and this name has led to increased trade and electronics manufacturing in the city of Batam, part of an archipelago of this name. For 10 points each:
[10m] Give this name for both an archipelago and a nearby province on the island of Sumatra.
ANSWER: Riau [accept Riau Islands]
[10e] Many of the Riau Islands, including Batam, are on the southern edge of this strait between the Malay Peninsula and Sumatra, known for its piracy.
ANSWER: Strait of Malacca
[10h] Much of the trade between Batam and Singapore goes through this region of Singapore, which contains the Tanah Merah Ferry Terminal. Singapore’s largest prison is a former camp for British POWs named for this region.
ANSWER: Changi
<BMB, Geography>