Nobody replied to this but here its for 25 points

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.

Ray lo bisects nlm, lm=18, no=4, and ln=10. what is the value of x?

The meseta in spain is a a. navigable river b. castle c. coastal plain d.plateau