| http://www.w3.org/ns/prov#value | - id rock, for example, can hold up a much steeper cliff than sand or clay, and when structures such as folds or faults appear at the Earth's surface, shapes adjust accordingly.The slope of the Grand Canyon is a result of many of these factors.The rocks are layered sedimentary strata with contrasting resistance to weathering.This naturally results in slopes with differing steepness and rates of eros
|
