题目内容：

英语翻译
How does the particle model of matter help you explain why it is easier to compress air than to compress a piece of iron?
翻译下,顺便用英语告诉我这题的答案.

优质解答

你如何用粒子模型来解释压缩空气比压缩一块铁容易?
The particle of air is thiner than a piece of iron.So it is easier to compress air than to compress a piece of iron.