america has many different climates
51Renewable energy commercialization — The wind, Sun, and biomass are three renewable energy sources …
52Spain — /spayn/, n. a kingdom in SW Europe. Including the Balearic and Canary islands, 39,244,195; 194,988 sq. mi. (505,019 sq. km). Cap.: Madrid. Spanish, España. * * * Spain Introduction Spain Background: Spain s powerful world empire of the 16th and… …
53tree — treelike, adj. /tree/, n., v., treed, treeing. n. 1. a plant having a permanently woody main stem or trunk, ordinarily growing to a considerable height, and usually developing branches at some distance from the ground. 2. any of various shrubs,… …
54Tree — /tree/, n. Sir Herbert Beerbohm /bear bohm/, (Herbert Beerbohm), 1853 1917, English actor and theater manager; brother of Max Beerbohm. * * * I Woody perennial plant. Most trees have a single self supporting trunk containing woody tissues, and in …
55pre-Columbian civilizations — Introduction the aboriginal American Indian (Mesoamerican Indian) cultures that evolved in Meso America (part of Mexico and Central America) and the Andean region (western South America) prior to Spanish exploration and conquest in the 16th …
56cereal processing — Introduction treatment of cereals (cereal) and other plants to prepare their starch for human food, animal feed, or industrial use. Nutrient composition of selected raw cereal grains (per 100 grams)Cereals, or grains, are members of… …
57community ecology — Introduction study of the organization and functioning of communities (community), which are assemblages of interacting populations of the species living within a particular area or habitat. As populations of species interact with one …
58Poaceae — ▪ plant family Introduction formerly called Gramineae grass family of monocotyledonous flowering plants, a division of the order Poales. The Poaceae are the world s single most important source of food. They rank among the top five… …
59Canna (plant) — taxobox name = Canna image caption = Italian Group Canna cultivated in Brazil regnum = Plantae unranked divisio = Angiosperms unranked classis = Monocots unranked ordo = Commelinids ordo = Zingiberales familia = Cannaceae genus = Canna L.… …
60forestry — /fawr euh stree, for /, n. 1. the science of planting and taking care of trees and forests. 2. the process of establishing and managing forests; forestation. 3. forestland. [1685 95; < MF foresterie. See FOREST, RY] * * * Management of forested… …
