Question

why do most people in southeast asia live near river deltas and on volcanic islands? (1 point) because of the abundant rainfall because of the fertile soil because of the isolation from invaders because of the mild climate conditions

Explanation:

River deltas have sediment - rich soil from river deposits. Volcanic islands have fertile soil from volcanic ash. Fertile soil is crucial for agriculture, which supports a large population. Abundant rainfall is not unique to deltas and volcanic islands. Isolation from invaders is not a main reason as these areas are often accessible. Mild climate is also not the key factor compared to soil fertility.

Answer:

because of the fertile soil