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How many days does it take for the Earth to orbit the Sun?
How long between leap years?
What is the average distance between the Earth and Sun?
What is Earth's number out of all the planets in the solar system?
What is the diameter of Earth?
How many degrees is the Earth tilted off the polar vertical?
How long does it take for the moon to rotate around the Earth once?
What is a solar eclipse?
What is a lunar eclipse?
Viewed from the North Pole which way does the Earth rotate?
How many hours does one rotation of Earth take?
What shape is Earth closest too?
What is the equatorial circumference of Earth?
What is the Earth's polar circumference?
The gravity of the Earth and Moon causes what to bulge?
When do King Tides occur?
When do Neap Tides occur?
