Earth’s rotation takes about

One complete revolution of Earth around the sun takes about

Earth has seasons because

An equinox occurs when

The two factors that combine to keep Earth and the moon in their orbits are

The tendency of a moving object to continue moving in a straight line or a stationary object to remain in place is called

All objects are attracted to each other by the force of

Which factor makes Earth different from all the other planets in the solar system in its ability to support life?

Earth is orbiting around sun. Earth’s orbit around sun is

Mars has seasons because of

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