It is at the boundaries between plates that most of Earth's volcanism and earthquake activities occur.
地球上大部分的火山活动和地震活动发生在板块之间的边界处。
2
The other islands, which emerged via geological processes such as volcanism, possessed no terrestrial life.
其他岛屿是通过如火山作用的地质作用形成的，没有陆地生命。
3
Unlike Oceanic islands that were once part of continental landmasses, islands formed by such geological processes as volcanism contain only plants and animals that could be transported there.