Answer:
The continents moved by 1.905 centimeters each year.
Explanation:
This question is solved by proportions, using a rule of three.
In the past 100 years, scientists measured the movement of the continents to be 190.5 centimeters. How much it moved in a year?
100 years - 190.5 centimeters.
1 year - x centimeters



The continents moved by 1.905 centimeters each year.