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WorksheetsExtinction
Total questions: 12
Worksheet time: 15mins
Name
Class
Date
1.
According to most scientists, what is the ultimate cause of most mass extinctions?
a)
overhunting
b)
evolution of new species to replace old ones
c)
major change in environment
d)
asteroid impact
2.
Which of the following is NOT a reason a species may become extinct?
a)
competition
b)
reproducing
c)
habitat loss
d)
overhunting
3.
True or False? Many scientists think that an asteroid caused the dinosaurs to go extinct.
a)
True
b)
False
4.
Species that are in danger of becoming extinct are called __________.
a)
endangered
b)
not lucky
c)
extinct
d)
in a jam
5.
When a plant or animal becomes extinct, it is gone _______.
a)
forever
b)
until next week
c)
for 5 years
d)
to sleep
6.
Evidence of an animal or plant that lived a long time ago on Earth is called a ________.
a)
fossil
b)
tiger
c)
extinct
d)
endangered
7.
Humans are causing extiction in which ways?
a)
By over hunting animals for food or products.
b)
By destroying the natural habitat of species.
c)
By polluting the environments of the world.
d)
All of the above.
8.
What is a mass extinction?
a)
When all the species in a particular area on earth suddenly go extinct
b)
When multiple species from all over the earth suddenly go extinct
c)
When one species goes extinct due to habitat changes
d)
When all life on earth is wiped out
9.
Which is LEAST LIKELY to push a species toward extinction?
a)
a. Cutting down entire forest
b)
b. Putting animals in a zoo
c)
c. Polluting mountain streams
d)
d. Introducing new species to an ecosystem with no known natural predator
10.
What is one of the main threats to tigers?
a)
Human impact
b)
deers are becoming extinct
c)
global warming
d)
the grass is dying
11.
Which of these describes a species that has become extinct?
a)
fewer members of the species are dying than being born
b)
more members of the species are dying than being born
c)
very few members of a species are alive
d)
all members of a species have died
12.
Which of the following species is extinct?
a)
woolly mammoth
b)
giant panda
c)
bald eagle
d)
green sea turtle
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