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Exercise "Birds' migration", created by bribri83 (a free exercise to learn English):
Results of the 413 people who have taken this test:
Average mark: 82 / 100 Share


Latest member with a 100/100 (perfect mark): show2009 / IVORY COAST, on Sunday 16 January - 09:00:
"Merci beaucoup !"


They got a perfect mark


Stats (412 candidates)
Question 1 passed: 86.7 %
Bird * fascinates humans.

Question 2 passed: 82 %
The cuckoo from Kamchatka lives in * Russia.

Question 3 passed: 83 %
It flies some * kilometres.

Question 4 passed: 77.7 %
How the birds are able to navigate so * is a puzzle.

Question 5 passed: 82 %
Some land right on the same * as they did the previous winter.

Question 6 passed: 80.8 %
In birds stations, they are * to get to the bottom of the navigation mystery.

Question 7 passed: 82.5 %
Migratory birds follow an inner *.

Question 8 passed: 79.6 %
They take their bearings from * separate processes.

Question 9 passed: 77.7 %
They likely also gauge space by the magnetic field and their sense of *.

Question 10 passed: 89.3 %
How birds sensory perception of magnetic fields works is still an * question.


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