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).
Obelisk making technology in ancient Egypt is an archaeological matter that is not entirely understood today. Ancient Egyptian Obelisks are tapering stone pillars which have a square cross-section, were used for ornamental purposes in temples and had religious or socio-political connotations.They were generally made from granite coming from well-known quarries located near the banks of the Nile, mainly in the region of Aswan.ncient Egyptian Obelisks are tapering stone pillars which have a square cross-section, were used for ornamental purposes in temples and had religious or socio-political connotations. They were generally made from granite coming from well-known quarries located near the banks of the Nile, mainly in the region of Aswan.