Final answer:
Tin is a natural resource found in Southeast Asia, particularly in Malaysia, Thailand, and Indonesia, but is not commonly found in South Asia.
Step-by-step explanation:
One natural resource found in Southeast Asia but not commonly found in South Asia is tin. Southeast Asia, particularly countries like Malaysia, Thailand, and Indonesia, are among the world's leading producers of tin. South Asia, on the other hand, does not have significant tin reserves. Tin is a critical resource used in the production of electronics and solders, which has made Southeast Asian countries important in the global supply of this metal.
The geographical features and climate of Southeast Asia have enabled the growth of various natural resources conditionally. Its location, surrounded by seas and oceans, provides an environment conducive to the formation of tin deposits. By contrast, South Asia's mineral wealth is focused more on resources such as iron ore, coal, and manganese, with a distinct geological makeup that does not support tin production to the same extent.