Observation of rain, wind, water erosion, and sea erosion in action showed that they were forces capable of reducing mountains and creating valleys.
(Observation of rain, wind, water erosion, and sea erosion in action; showed; that they were forces capable of reducing mountains and creating valleys) Context(Observation of rain , wind , water erosion , and sea erosion in action showed,List([0, 74))):(they; were; forces capable of reducing mountains and creating valleys)
Observation of rain , wind , water erosion , and sea erosion in action showed,List([0, 74))
Observation of rain, wind, water erosion, and sea erosion in action they
showed were
that they were forces capable of reducing mountains and creating valleys
forces capable of reducing mountains and creating valleys