It takes a continent approximately 250,000,000 years to move halfway around Earth, a distance of about 19,200 km or 1,920,000,000 cm. The speed of the
continent in _______
per_____
can be found by dividing 1,920,000,000 cm by 250,000,000 years.
continent in _______
per_____
can be found by dividing 1,920,000,000 cm by 250,000,000 years.