rotations and revolutions. When an object turns around an internal axis (like the Earth turns around its axis) it is called a rotation. When an object circles an external axis (like the Earth circles the sun) it is called a revolution.
Answer:
152.4 km each side of these ocean basins spread during the past 1 million years.
Explanation:
- The mid Atlantic ridge is spreading at a very fast rate and its due to the spreading of lavas on the either side of the oceanic plate it continues to expand, the ocean spread at a speed of 3-6 inches in a year and thus the axis to the beginning of the yellowish polarity.
Alaska is the biggest in terms of sq miles
