Answer:
The answer is D.
Explanation:
Southeast Asia consists of eleven countries that reach from eastern India to China, and is generally divided into “mainland” and “island” zones. The mainland (Burma, Thailand, Laos, Cambodia, and Vietnam) is actually an extension of the Asian continent.
Some changes are due to slow processes, such as erosion and weathering, and some changes are due to rapid processes, such as landslides, volcanic eruptions, and earthquakes.
I think the answer is A)Natural Springs