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1. 
The biggest animal in the cat family is...
A.
the tiger
B.
the cheetah
C.
the lion
D.
Kitty
2. 
The tiger is a beautiful animal which is ...
A.
in disappearing
B.
in risk of extinction
C.
at risk of extinction
D.
extinct
3. 
The dinosaurs.... about 65 million years ago.
A.
became extinct
B.
became disappeared
C.
become extinct
D.
are becoming extinct
4. 
Some natural causes for extinctions are...
A.
There is little rain
B.
Bigger animals eat all the small animals and then, they don't have food
C.
The natural world changes
D.
All the answers are correct
5. 
Where did the dodo live?
A.
In Mauritius, in the Indian Ocean
B.
In Mauritius, in the Atlantic Ocean
C.
In Mauritius, in the Antarctic Ocean
D.
In Mauritius, in the Pacific Ocean
6. 
Why did dodos disappear?
A.
Because humans brought dogs to the island and they killed dodos.
B.
Because humans cut down trees and destroyed dodos' homes
C.
Because humans hunted dodos, and not for food
D.
All the answers are correct
7. 
Rhinoceroses die because
A.
people want to buy their horns and fur.
B.
people want to build houses with rhinos' horns.
C.
people want to have rhinos at home
D.
people don't give water to rhinos
8. 
Taking animals from their habitat to another one can be:
A.
Dangerous because other animals don't know them and can't defend from the new ones.
B.
Dangerous because they can mix with other species and create new ones.
C.
dangerous because this attracts rats
D.
it's good because a new species is in the habitat.
9. 
We can see the effect of humans at Lake Victoria, in Africa because ...
A.
humans brought very big fish and they can't swim
B.
the big Nile perch fought against the little cichlids and won
C.
the Nile fish were extremely big and ate ittle cichlids that soon were extinct.
D.
people needed more food so they ate Nile perch and the little cichlid
10. 
Algae was another problem because...
A.
cichlids ate algae and when they disappeared, algae invaded everything and Lake Victoria is dying
B.
cichlids ate algae and when the fish disappeared, algae died
C.
algae ate cichlids and when they disappeared, algae invaded everything and Lake Victoria is dying
D.
algae and cichlids disappeared because of pollution of towns and factories