Alter Topography Increase at www.japanese-home-gardens.com

El Greco's two famous views of Toledo, one ith the map and plan of the city (Casa del reco, Toledo) and the weirdly storm-threatened ew (Metropolitan Museum of Art, New York) >uld almost be called interpretive portraits of ie city. In the latter picture, the artist has not ssitated to alter topography increase the topography to increase the •amatic effect. Glimpses of the landscape of oledo and its surrounding country are often im-artant components of many of El Greco's reli-ous compositions.

Regional (or dynamic) metamorphism [5] occurs where large areas of rock have been buried sufficiently deep for the increase in temperature and pressure to alter topography increase the rocks. The pressure increase is caused by the weight of rocks above and the increase in temperature by the earth's interior heat. Slates are formed by both regional and thermal metamorphism but schists and gneisses are found only in regional metamorphism. Regionally metamorphosed rocks outcrop over a large part of the earth's surface, where old mountain ranges have been eroded away, leaving on the surface rocks that were once deeply buried. Examples are the Canadian Shield and parts of Scotland and Sweden.

(2) Improvement of forage production. Forage yields may be improved by seeding new and better species, by spraying the range with herbicides to kill undesirable and sometimes poisonous weeds and brush to permit better growth of more palatable forage, by fertilizing the soil, and by spreading floodwater over adjacent rangeland. (3) Increase in usability of the range. On many ranges the topography is so rough and the watering places are so poorly distributed that it is difficult to achieve complete and uniform grazing use, especially when the animals are unattended by herders. This problem can be solved in part by building fences to control the distribution of the animals.