The right answer is D. intensive irrigation.
Sustainable agriculture is the application to agriculture of the principles of sustainable or sustainable development as recognized by the international community in Rio de Janeiro in June 1992. It is a system of agricultural production that aims to ensure sustainable production of food, wood and fiber respecting the ecological, economic and social limits that ensure the maintenance over time of this production.
Sustainable agriculture aims to reduce the environmental impact of the sector. It is in particular an agriculture that better protects the biodiversity, the water and the soils that are necessary for it and which uses it better through the auxiliaries of agriculture and the ecosystem services.
The sustainable agriculture must respect these principles:
* the fight against desertification.
* conservation of genetic resources and biodiversity;
* soil conservation;
* the conservation of water resources:
* sustainable management of natural pastures;
