Library Resource
Rapports et recherches
décembre, 1981
Grèce, Belgique, Iraq, Chili, Allemagne, Guatemala, Guinée-Bissau, Irlande, Ghana, Iran, Islande, Costa Rica, Colombie, Chypre, Hongrie, Haïti, Italie, Brunéi Darussalam, Équateur, Cuba, Inde, Brésil, Canada, Afrique
This course teaches the farmer about the water cycle. It covers rainfall, ground water, the water table, surface water, evaporation, and transpiration. It also delivers information on wells and springs, swamps, ponds, lakes, streams and rivers. It explains how water is necessary for life.