托福考试

【单选题】{{B}}Set 2 Geology plate Tectonics{{/B}}

Identify the area in the diagram where subduction occurs.
网考网参考答案：D
网考网解析：
The professor says ...rock is melted and forced back into the mantle-at trenches. This process of rock being "swallowed" or forced back into the earth’s mantle is called subduction; ... lava that rises and spreads from the oceanic ridges sinks again elsewhere in subduction zones, which are nearly identical with the ocean trenches. (2.2) document.getElementById("warp").style.display="none"; document.getElementById("content").style.display="block"; 查看试题解析出处>>