本题目来源于试卷: Soil Structure & Systems，类别为 IB环境系统与社会
[单选题]
Figure: Tree roots on a rock v 1cb4hp iea9k*rku(1 g.st.tj*q a zg,zc/lzw.9:im face
Deduce which of the following processes is best shown in this image.
A. Biological weathering
B. Physical weathering
C. Chemical weathering
D. Options A and B both
参考答案: A
本题详细解析:
The picture clearly shows tree roots and cracked rock. Tree roots)d75)nyxqmpd8 w ltb+fk; h, b oslz65 breaking through rock is biological weathering so option A is correct. Options B and D are not correct because, though the tree breaking through rock is a physical process, physical weathering uses air or water as an agent, neither of which is clearly shown to be acting in the image. Cheq+zo 55h,xsd6 m7wb lpbdnf)k;ly8)t mical weathering is also not clearly indicated in the image, so option C is not the best choice.
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