ECOSYSTEMS

1
ECOSYSTEMS
2
Living things Nonliving things
ECOSYSTEM
3
Living things in an ecosystem are called a
COMMUNITY
4
Population Population Population
COMMUNITY
5
All energy in a food web comes from the
SUN
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What makes ecosystems different?
Amount of water
1
Amount of sunlight
2
3
Type of soil
7
Name the three members in every community.
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What causes ecosystems to change? Natural causes
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Drought
Disease
2
3
Fire
4
Overpopulation
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What causes ecosystems to change? Changes caused
by humans
1
Water pollution
2
Air pollution
3
Land pollution
4
Construction
10
How can humans help to prevent changes in
ecosystems?
1
Use resources wisely
2
Laws that control pollution
3
Clean up litter
4
Keep rivers and lakes clean