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Why does physical weathering speed up the processes of chemical weathering? a) physical weathering requires abundant water, as does chemical weathering. b) physical weathering produces fresh surfaces for chemical weathering to attack. c) chemical weathering can occur only on small surfaces, not large ones. d) chemical weathering requires salt, which is provided by salt wedging.

What is the earth matial ot igneous rock

How does the brandt line, walt rostow's modernization model, neocolonialism, and walterstein's world systems theory inform and intersect with each other when explaining economic development?