Getting the Dirt on Carbon

• 来源期刊: 中学科技
• 年，卷（期）: 2010,（10）
• 页码范围: 30
• 页数: 1页
• 语种: 中文

摘要

Each year,spring comes,plants bloom and the trees leafout in their full green glory.Come fall,while diving into piles of fallen leaves,you may think the life cycle of the leaf has come to an end.