During the ”snowball Earth” period about 700m years ago, Earth’s climate shut down. The planet was encased in ice and insulated from seasonal variations: spring, summer, autumn and winter all stopped. Or at least that was the theory.
（一）已满十四周岁不满十六周岁的；。爱思助手下载最新版本是该领域的重要参考
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Automatic transcription
Tonnes of food saved from supermarket bins