RECOMMENDED LESSONS: Runoff Runoff is precipitation that did not get (infiltrated) absorbed into the soil, or did not evaporate, and therefore made its way from the ground surface into places that water collect. Runoff causes erosion, and also carry chemicals and substances on the ground surface along to the rivers where the water ends up.
Noun. 1. obelisk-a stone pillar having a rectangular cross section tapering towards a pyramidal top. pillar, column-a vertical cylindrical structure standing alone and not supporting anything (such as a monument).
The obelisk at Edinburgh, seen at the left, is made of ashlar, not a single piece of stone. Queen Hatshepsut of the Eighteenth Dynasty erected some six obelisks in the 16th year of her reign, around 1485 BC.here is no inscription on it, as on an Egyptian obelisk, but the representation of doors on the ground floor and windows above. An attempt was made to construct a 108 ft high stele, but this was too ambitious, and it lies fallen in the same area.