6. What makes ecosystems different?
1 Amount of water
2
Amount of sunlight
3
Type of soil
7. Name the three members in
every community.
Producers
Consumers
Decomposers
8. What causes ecosystems to change?
Natural causes:
1
Drought
2
Disease
3
Fire
4
Overpopulation
9. 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