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Chapter 4
Test Description: Changes in Ecosystems
Instructions: Answer all questions to get your test result.
1) One way to help the environment is to _____________ our use of certian products.
A
recycle
B
reduce
C
reuse
D
review
2) Two animals that fight for the same food source is an example of what?
A
competition
B
extinct
C
flood
D
endangered
3) The st. Helena Olive tree became __________ because of disease and dry weather.
A
competition
B
extinct
C
flood
D
endangered
4) When harmful materials damage teh air, water, or land this is called __________.
A
flood
B
population
C
fossils
D
pollution
5) Sunlight and air are ___________ that help an organism survive.
A
resources
B
endangered
C
extinct
D
competition
6) The remains of organisms that lived long ago are ______________.
A
flood
B
fossils
C
pollution
D
population
7) When only a few of an organism are left, it is __________________.
A
extinct
B
competition
C
flood
D
endangered
8) All the eagles in an ecosystem make up a(n) ______________.
A
population
B
reuse
C
resources
D
reduce
9) A person can ___________ an old tire by turning it into a tire swing.
A
recycle
B
reduce
C
review
D
reuse
10) Heavy rains and other storms can cause a(n) _____________________.
A
flood
B
population
C
pollution
D
fossils
*select an answer for all questions
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