Subject
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Mining
1
Mistletoes
1
Moths
1
NITROGEN OXIDES
1
Peat
1
Pest management
3
Pests
5
Pines
1
Population
1
Power generation
2
Precambrian
1
Pyrite
1
Pyrolysis
1
Quarries
1
Recreation
1
Research and development
2
Rivers
1
Safety
2
Science
1
Social aspects
1
Species at risk
1
Spraying
2
Spruce
1
Spruce budworm
7
Statistics
1
Sulfur
1
Sulfur dioxide
1
Sydney Basin
1
Sydney coalfield
1
Tectonics
1
Trapping
1
Turtles
1
Utilization
1
Water Supply
1
Water quality
1
Watersheds
1
Wilderness areas
1
Woodlots
1