CHEMICALS
POLLUTION
ACIDRAIN
ORGANIC
ENVIRONMENT
CONSERVATION
CONTAMINATION
CARBONDIOXIDE
CLIMATECHANGE
GLOBALWARMING
I
H
E
C
A
U
R
J
P
N
O
I
T
U
L
L
O
P
A
I
C
A
R
B
O
N
D
I
O
X
I
D
E
E
Y
I
O
X
V
G
H
O
U
U
F
J
Y
Y
X
R
R
H
O
T
E
Q
H
M
D
N
C
X
U
A
U
O
K
O
X
A
N
Z
V
I
D
R
C
V
O
X
A
A
M
A
D
G
S
E
S
A
U
O
D
C
D
I
N
I
M
I
U
M
L
O
M
O
F
E
H
D
O
F
L
X
T
O
T
O
C
O
I
N
R
E
P
D
Z
U
O
B
R
I
A
S
L
A
B
M
O
R
I
G
O
T
A
U
L
Z
S
Q
M
U
U
A
V
R
M
A
G
R
Z
R
X
A
F
N
L
C
I
A
L
I
I
R
C
O
X
U
O
Z
Q
M
O
K
A
S
N
W
T
V
Q
I
E
S
A
I
C
E
J
Y
J
E
C
E
A
E
N
E
D
X
O
S
O
T
O
Y
V
J
X
Z
I
R
T
E
C
R
C
K
R
W
N
M
X
L
G
Z
I
G
M
E
I
A
A
U
G
H
G
U
X
O
I
C
Y
E
I
I
E
N
O
I
H
D
I
X
A
G
I
I
C
G
U
U
N
A
H
B
N
A
I
B
V
U
N
N
S
G
X
U
O
G
C
I
C
G
B
H
H
I
I
F
I
E
G
E
S
S
B
A
N
A
G
H
I
R
E
A
X
X
C
S
W
E
K
I
