The slow, conical motion of Earth's spin axis, similar to that of a spinning top, with a period of about 26,000 years for one cycle, is called Earth's .

What role did the waterways of europe play in development of europe's economy

What first caused people to consider that the continents were once one large landmass?

Since 1980, which three countries have either attacked or been attacked by iraq? a. iran, turkey, united states b. iran, israel, jordan c. iran, kuwait, united states d. iran, saudi arabia, egypt