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Jouer Mots Roulette
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z
Starts with  
A
non-living physical factors
Starts with  
B
collection of ecosystems sharing similar climatic conditions
Starts with  
C
a group of populations living and interacting with each other in a common habitat
Starts with  
D
process in which nitrate and nitrite ions become nitrogen gas which escapes to the atmosphere
Starts with  
E
...include pyramids of numbers, biomass and productivity.
Starts with  
F
tropical, temperate and boreal
Starts with  
G
water under the ground
Starts with  
H
natural home or environment of an organism
Starts with  
I
an important topic or problem for debate or discussion
Starts with  
J
a graph that records how the population density of an organism increases rapidly
Contains  
K
a sudden movement of the Earth's surface
Contains  
L
a layer of air high above th Earth which contains a lot of ozone
Contains  
M
the general weather conditions usually found in a particular place.
Contains  
N
species, animal or plants which may soon not exist because there are very few now alive.
Starts with  
O
O3 (gas molecule)
Starts with  
P
damage caused to water, air....by harmful substances or waste
Starts with  
Q
frame of specific size(depending on what is being studied)which may be divided into subsections.
Starts with  
R
to collect and treat rubbish to produce useful materials which can be used again.
Starts with  
S
a development that is causing little or no damage to the environmentand therefore able to continue for long time.
Starts with  
T
the position that an organism occupies in a food chain.
Starts with  
U
a type of petrol or other substance that doesn´t contain lead.
Starts with  
V
a mountain with a large circular hole at the top through which lava, gases, steam steam and dust are or have ben forced out.
Starts with  
W
unwanted matter or materialof any type.
Contains  
X
species of animals or plants that they no longer exist.
Contains  
Y
the process in which green plants make their own food
Starts with  
Z
the change in a community along an environmental gradient due to geographical factors