French is the official language in 29 countries, most of which are members of la francophonie, the community of French-speaking countries.It is spoken as a first language in France, southern Belgium, western Switzerland, Monaco, certain parts of Canada and by various communities elsewhere.rench is the official language in 29 countries, most of which are members of la francophonie, the community of French-speaking countries.
Study sets matching term:drip+irrigation = most efficient method of irrigation
Irrigation. The vast quantities of water in reservoirs allow them to act as effective and steady sources of water for irrigation with minimal seasonal fluctuations. 30 to 40 percent of the 271 million hectares that are irrigated worldwide rely on irrigation dams [2].