Pynciau a Argymhellir
Agriculture
1
Agriculture durable
Aspect de l'environnement
1
Dégradation
1
Effect of human beings on
1
Environmental aspects
Environmental degradation
1
Environmental health
1
Environnement
1
Homme
1
Influence sur la nature
1
Nature
1
Pollution
1
Sustainable agriculture
1
chemical pollution
1
pollution
1