yield an economic effect
71Invasive species — See also: List of invasive species, Introduced species, Pest (organism), and Weed North American beavers constitute an invasive species in Tierra del Fuego, where they have a substantial impact on landscape and local ecology through their… …
72Austria — Austrian, adj., n. /aw stree euh/, n. a republic in central Europe. 8,054,078; 32,381 sq. mi. (83,865 sq. km). Cap.: Vienna. German, Österreich. * * * Austria Introduction Austria Background: Once the center of power for the large Austro… …
73ancient Greek civilization — ▪ historical region, Eurasia Introduction the period following Mycenaean civilization, which ended in about 1200 BC, to the death of Alexander the Great, in 323 BC. It was a period of political, philosophical, artistic, and scientific… …
74Sustainability — Achieving sustainability will enable the Earth to continue supporting human life as we know it. Blue Marble NASA composite images: 2001 (left), 2002 (right). See also: Sustainable development Sustainability is the capacity to endure. For humans,… …
75Life Sciences — ▪ 2009 Introduction Zoology In 2008 several zoological studies provided new insights into how species life history traits (such as the timing of reproduction or the length of life of adult individuals) are derived in part as responses to… …
76Land value tax — Land value taxation (LVT) (or site value taxation) is an ad valorem tax where only the value of land itself is taxed. This ignores buildings, improvements, and personal property. Because of this, LVT is different from other property taxes which… …
77Pakistan — /pak euh stan , pah keuh stahn /, n. 1. Islamic Republic of, a republic in S Asia, between India and Afghanistan: formerly part of British India; known as West Pakistan from 1947 71 to distinguish it from East Pakistan (now Bangladesh).… …
78Egypt, ancient — Introduction civilization in northeastern Africa dating from the 3rd millennium BC. Its many achievements, preserved in its art and monuments, hold a fascination that continues to grow as archaeological finds expose its secrets. This article… …
79Minimum wage — A minimum wage is the lowest hourly, daily or monthly remuneration that employers may legally pay to workers. Equivalently, it is the lowest wage at which workers may sell their labour. Although minimum wage laws are in effect in a great many… …
80Green Revolution — For other uses, see Green Revolution (disambiguation). Increased use of various technologies such as pesticides, herbicides, and fertilizers as well as new breeds of high yield crops were employed in the decades after the Second World War to… …
