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Science
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Environmental Changes causing Endangerment or Extinction
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Edad 8-12
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level: 6
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English
Instrucciones del autor
In ecosystems, there is usually stability. However, changes constantly occur. These changes may be sudden or gradual.
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Science
-
Environmental Changes causing Endangerment or Extinction
-
Edad 8-12
-
level: 6
-
English
Instrucciones del autor
In ecosystems, there is usually stability. However, changes constantly occur. These changes may be sudden or gradual.