Disadvantages associated with human activities and the sea

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.

Which features do all new rocks formed near oceanic ridge share? pillow shaped stripes pattern provide evidence to seafloor spreading made from molten material iron oriented in same direction

Distance that the transcontinental railroad covered from omaha to san francisco.