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
Heat Pump (Only) Mode. This is the most efficient mode providing you with the greatest amount of savings. In this mode, the water heater only operates the heat pump to heat the water. This is the most efficient mode providing you with the greatest amount of savings.