Agriculture & Biology
Fraxinus americana
83%
Fraxinus pennsylvanica
82%
acid rain
75%
sulfur dioxide
65%
ozone
58%
pollutants
35%
seedlings
34%
root shoot ratio
30%
rain
28%
leaf area
23%
ash (inorganic matter)
18%
fumigation
10%
leaf mass
10%
marshes
9%
shoots
5%
biomass
5%
Physics & Astronomy
acid rain
100%
sulfur dioxides
75%
ashes
70%
ozone
60%
rain
35%
leaves
28%
contaminants
28%
fumigation
13%
marshlands
11%
biomass
8%
elongation
6%
interactions
2%
Earth & Environmental Sciences
growth response
69%
acid rain
64%
seedling
56%
sulfur dioxide
55%
ash
45%
ozone
43%
pollutant
16%
fumigation
9%
marsh
6%
biomass
4%
laboratory
3%
effect
1%
Mathematics
Sulfur Dioxide
99%
Ozone
83%
Pollutants
43%
Leaves
31%
Roots
17%
Elongation
10%
Biomass
10%
Decrease
6%
Interaction
5%
Engineering & Materials Science
Acid rain
83%
Sulfur dioxide
73%
Ozone
69%
Rain
30%
Fumigation
11%
Elongation
6%