ASTR 101 Study Guide - Quiz Guide: Federal Aviation Administration, Seismology, Carbonate Rock
Document Summary
The above image is a map of north and south america using radar altimetry to reflect the underlying topography of the oceans and continents. The elevation of the land surface varies from the low point of -418 m at the. Dead sea, to a maximum altitude of 8,848 m at the top of mount everest. The mean height of land above sea level is 840 m. The pedosphere is the outermost layer of earth"s continental surface and is composed of soil and subject to soil formation processes (i. e. , decaying plant material). The total arable land is 10. 9% of the land surface, with 1. 3% being permanent cropland. Close to 40% of earth"s land surface is used for cropland and pasture. The above image is part of the rocky mountain range in the yukon territory of canada is an excellent example of young mountains on earth.
