Question

Many of the islands of Indonesia (Java, Sumatra, Borneo), which are located adjacent to a subduction zone next to the edge of the continental shelf of SE Asia, consist of felsiclava. This means that the lava that produces these islands is derived from
A) a midocean ridge.

B) a volcanic hot spot under the ocean floor.

C) the melting of continental shelf material along with ocean floor material.

D) the melting of subducted plate material and nothing else.

E) a rift zone

Answer 1

Answer:

D) the melting of subducted plate material and nothing else.

Explanation:

• As Indonesia is home to a large island and has volcanic peaks and associate hotpots and large chains of mountainous ranges and has a high tectonic and volcanic activity and largely due to the formation of various fault systems.