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 London and New York obelisks are a pair and originate from the Egyptian city of Heliopolis (now Cairo). They are made of red granite, they are 21 metres (69 ft) high and weigh about 224 tons.The obelisk in New York was erected in Central Park in 1881.t was rediscovered broken to pieces in 1587 along with the Lateran obelisk and placed in itâs current location. Obelisks From Around The World: Flaminio Obelisk, Piazza del Popolo, Rome, Italy. 10. Obelisk of Axum, Axum, Ethiopia â A 24 meters tall (79 ft) granite obelisk.