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UNIT 4-
Autor :
Scientific Area Junior High School
1.
part of the environment that supplies material useful or necessary for the survival of living things
U
R
S
R
T
N
A
L
R
O
A
E
E
U
C
2.
the removal of large areas of forests for human purposes
O
R
O
I
S
F
D
N
E
A
T
T
E
3.
the development of towns and cities on previously natural areas.
O
I
N
B
I
U
A
R
A
N
T
Z
4.
the contamination of the environment with substances that are harmful to life.
U
P
I
O
L
N
T
L
O
5.
the careful use of Earth’s materials to reduce damage to the environment
I
S
O
A
V
N
T
E
N
O
C
R
6.
process of planting trees to replace trees that have been cut or burned down.
O
T
O
T
N
I
A
S
R
E
E
R
F
7.
a process in which mined land is restored with soil and replanted with vegetation.
L
M
T
R
O
A
E
I
N
C
A
8.
an area of permeable sediment or rock that hold significant amounts of water
E
U
R
A
I
Q
F
9.
the contamination of air by harmful substances including gasses and smoke
R
L
O
I
T
U
N
A
L
O
P
I
10.
air pollution that forms from the interaction between chemicals in the air and sunlight.
C
C
T
H
M
E
M
H
G
O
L
P
O
O
A
S
I
11.
the mixture of both solid and liquid particles in the air
R
E
I
A
T
L
T
U
C
P
A
T
R
M
A
T
E
12.
precipitation that has a lower pH than that of normal rainwater
I
T
N
E
C
A
I
P
O
I
T
P
R
I
A
C
D
13.
the weather conditions prevailing in an area in general or over a long period
M
T
E
I
L
A
C
14.
any change in Earth’s climate, including global trends in warming, cooling, precipitation, wind directions, and other related measures
E
C
G
E
L
C
M
N
T
I
A
H
A
15.
an increase in the average temperature of Earth’s surface
B
R
L
G
O
W
M
I
A
L
G
A
N
16.
an increase in the average temperature of Earth’s surface
B
A
A
N
L
R
I
G
W
G
L
O
M
17.
a gas in the atmosphere that absorbs Earth’s outgoing infrared radiation
O
S
S
R
E
E
E
S
E
A
H
S
G
N
G
U
18.
the natural process that occurs when certain gasses in the atmosphere absorb and reradiate thermal energy from the Sun
F
E
S
F
E
E
E
O
C
G
U
R
E
H
T
N
19.
the loss of in corals that occurs when stressed corals expel the colorful algae that live in them
L
N
E
R
C
C
G
A
L
B
A
O
H
I
20.
all the organisms of the same species that live in the same area at the same time
A
P
L
N
O
P
O
U
T
I
21.
part of the environment that supplies material useful or necessary for the survival of living things
L
R
U
O
E
N
S
T
A
U
E
R
C
R
A
22.
the largest number of individuals of one species that an ecosystem can support over time
I
Y
A
T
P
A
C
C
A
N
I
Y
R
C
R
G
23.
