volcanism
🇬🇧/ˈvɒlkənɪz(ə)m/ 🇺🇸/ˈvɑːlkəˌnɪzəm; ˈvɔlkəˌnɪzəm/📚 31505雅思GREthose processes collectively that result in the formation of volcanoes and their products 火山作用
noun [抽象名词]（地质）火山作用（活动或现象）
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。
单词造句:
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- 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。