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
$3 000 - $8 000. Effectiveness of the Technology. Compared to the other irrigation systems, surface irrigation results in the highest water losses due to surface runoff and deep percolation within the area irrigated. Much of the water supplied in this manner is not utilised by the crop being irrigated.