Alfred Wegener produced evidence in 1912 that the continents are in motion, but because he could not explain what forces could move them, geologists rejected his ideas. Almost 50 years later Harry Hess confirmed Wegener’s ideas by using the evidence of seafloor spreading to explain what moved continents.
Answer:
Longitude is much harder to calculate than latitude.
Explanation:
The Earth rotates 360° per day, which is 15° per hour, and so there's a direct relationship between longitude and the time that the Sun rises and sets