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Chapter 4 - 2
Test Description: Changes in Ecosystems
Instructions: Answer all questions to get your test result.
1) What could happen if people introduce a new animal into an environment?
A
all plants and animals will live together
B
The environment will not be affected
C
the animal uses up resources
D
other animals will create pollution
2) An example of something that is harmful to the environment is
A
an oil spill in the ocean
B
a plant that decomposes
C
a bird that builds a next on a rooftop
D
a lake filled with fresh water
3) Which of the followingn is a reason why pandas are endangered?
A
they are no longer able to migrate in the winter
B
hunters kill them for their fur
C
people have destroyed the forests where they live
D
the waqter sources in their environment have dried up
4) What do fish fossils found on land tell us?
A
that part of the land was once covered in water
B
that there were land-roaming fish
C
that many different animals fed on fish
D
that peopleonce fished on the beach
5) If a predator in an environment dies out, whaqt do you think would happen to the predator\'s prey?
A
there would be a lot more of the prey
B
it would have new predators
C
it would die out
D
it would migrate
6) How can you tell what an animal ate by examining its fossil?
A
study its teeth
B
study the plants in the area
C
look at it's stomach
D
see what animals are dead next to it
7) What is a natural cause of wildfires?
A
matches
B
house fires
C
lightning
D
cars
8) Winneconne Elementary helps the environment by...
A
by having faucets that automatically shut off in the bathrooms
B
all of these
C
having recycling bins in the school
D
teachers keep their doors closed to keep heat in
9) Why should you plant trees in an open space instead of putting a building there?
A
to have more trees for cleaner air
B
all of these
C
to create a new habitat
D
trees help prevent erosion
10) What is an effect of wildfires?
A
destroy habitats and pollute air with smoke
B
a clear place for a new shopping mall to go
C
a flood
D
toasted marshmallows
*select an answer for all questions
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