
Problèmes du sol
Authored by Maia CHIKAMATSU
Science
2nd Grade
Used 7+ times

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16 questions
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1.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
L‘érosion c’est :
Dégradation graduelle du sol
Déplacement du sol ou roches
Infiltration de l’eau
Source d‘éléments nutritifs
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Combien des types d‘érosion existe-t-il ?
1
5
6
7
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quelles pratiques agricoles peuvent causer des problèmes d‘érosion plus importants ?
Profondeur du travail du sol
Réduction d‘effluents
Diminuer le surpâturage
Construire des aires bétonnées
4.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Quelles sont les causes de l‘érosion ?
Les solvants chimiques
Pluies intenses
La longueur et inclinaison des pentes
La diminution de la biodiversité
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Conséquences de l‘érosion:
Sol plus dur et compact
Des sols avec des plantes tolérantes
Dégradation du sol
Lessivage des particules
6.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Quelle est l’utilité d’un sol sous couverture?
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
En Wallonie les sols cultivés entre 1960-2006 présentent une diminution de teneur en matière organique de :
10%
30%
70%
15%
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