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
The study suggests that âjust as precision irrigation can improve water efficiency, precision lighting can improve electrical efficiency,â meaning that different arrangements in a grow room or greenhouse would require HPS, LED, or both in tandem.