Question 1
Which happened earlier?
A
Dodo becomes extinct
✓ Earlier
B
Passenger pigeon becomes extinct (Martha dies at Cincinnati Zoo)
Dodo becomes extinct (1 January 1662)
came before
Passenger pigeon becomes extinct (Martha dies at Cincinnati Zoo) (1 September 1914)
Question 2
Which happened earlier?
A
WWF (World Wildlife Fund) founded
✓ Earlier
B
First Earth Summit held in Rio de Janeiro
WWF (World Wildlife Fund) founded (29 April 1961)
came before
First Earth Summit held in Rio de Janeiro (3 June 1992)
Question 3
Which happened earlier?
A
Giant panda first born in captivity outside China (Mexico City Zoo)
B
Last thylacine (Tasmanian tiger) dies in Hobart Zoo
✓ Earlier
Last thylacine (Tasmanian tiger) dies in Hobart Zoo (7 September 1936)
came before
Giant panda first born in captivity outside China (Mexico City Zoo) (21 July 1980)