Explain what causes seasons on Earth by filling in the blanks.

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.

Rocks that contain crystals that are roughly equal in size and can be identified with the unaided eye are said to exhibit a texture.

At which point on the diagram do convection currents occur to drive plate movement?