Question 1
Which happened earlier?
A
Neil Armstrong and Buzz Aldrin land on the Moon
✓ Earlier
B
9/11 terrorist attacks on United States
Neil Armstrong and Buzz Aldrin land on the Moon (20 July 1969)
came before
9/11 terrorist attacks on United States (11 September 2001)
Question 3
Which happened earlier?
A
First MRI scan performed
B
Endangered Species Act signed (US)
✓ Earlier
Endangered Species Act signed (US) (28 December 1973)
came before
First MRI scan performed (3 July 1977)