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
drip irrigation. The amount lost to evaporation in relationship to the amount applied, then it would probably be (e), gravity flow irrigation. However, gravity flow is the most wasteful method of irrigating, resulting in large volumes of water that runs off the field, unused. Drip irrigation is definitely the most efficient use of water. bikinkawboy Â· 8 years ago