Some changes are due to slow processes, such as erosion and weathering, and some changes are due to rapid processes, such as landslides.
(Some changes; are; due to slow processes, such as erosion and weathering) (some changes; are; due to rapid processes, such as landslides)
Some changes some changes
are are
due to slow processes, such as erosion and weathering
due to rapid processes, such as landslides