题目内容

Compared to the pheroidal weathering, the exfoliation usually shows:

A. Chemical weathering and small scale
B. Chemical weathering and large scale
C. Physical weathering and small scale
D. Physical weathering and large scale

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This horizon in the soil profile includes bacteria, fungi, algae, and insects is called:

A horizon
B. O horizon
C. B horizon
D. C horizon

The major controlling factors on soil are:

A. Parent material
B. Time
Climate
D. Plants and animals
E. Topography

The major weathering products are:

A. Clastic material
B. Dissolved materials
C. Eluvium
D. Regolith
E. Soil

The most likely major weathering type in the hot and humid areas is:

A. Chemical weathering
B. Mechanical weathering
C. Biological weathering
D. Human weathering