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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
the animal uses up resources
B
all plants and animals will live together
C
other animals will create pollution
D
The environment will not be affected
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 lake filled with fresh water
D
a bird that builds a next on a rooftop
3) Which of the followingn is a reason why pandas are endangered?
A
hunters kill them for their fur
B
they are no longer able to migrate in the winter
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 peopleonce fished on the beach
B
that part of the land was once covered in water
C
that there were land-roaming fish
D
that many different animals fed on fish
5) If a predator in an environment dies out, whaqt do you think would happen to the predator\'s prey?
A
it would die out
B
it would have new predators
C
there would be a lot more of the prey
D
it would migrate
6) How can you tell what an animal ate by examining its fossil?
A
see what animals are dead next to it
B
study its teeth
C
study the plants in the area
D
look at it's stomach
7) What is a natural cause of wildfires?
A
house fires
B
lightning
C
cars
D
matches
8) Winneconne Elementary helps the environment by...
A
having recycling bins in the school
B
all of these
C
teachers keep their doors closed to keep heat in
D
by having faucets that automatically shut off in the bathrooms
9) Why should you plant trees in an open space instead of putting a building there?
A
trees help prevent erosion
B
to create a new habitat
C
to have more trees for cleaner air
D
all of these
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
toasted marshmallows
D
a flood
*select an answer for all questions
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