Ecology Human Geography 9 SOCIAL SCIENCE Environmental conditions 8 Human ecology 8 History 6 Conditions environnementales 5 Effect of environment on 3 Êtres humains 3 Human beings 3 Influence de l'environnement 3 British colonies 2 Colonies 2 Effect of human beings on 2 Environmental conditions.i 2 Écologie humaine 2 Écologie végétale 2 Geographical perception 2 Histoire 2 Influence sur la nature 2 Natural resources 2 Nature 2 Opinion publique 2 Perception géographique 2 Plant ecology 2 Public opinion 2 Ressources naturelles 2 Wilderness areas 2 Conditions sociales 1 Conservation of natural resources 1