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soil conservation |
conservation des sols : 25 phrases in 10 subjects |
Agriculture | 2 |
Environment | 3 |
General | 1 |
Law | 2 |
Life sciences | 2 |
Name of organization | 3 |
Natural resourses and wildlife conservation | 1 |
Soil science | 3 |
United Nations | 4 |
Water resources | 4 |