Planets/Earth

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Which planet is called Earth's twin because it is similar in mass and diameter to Earth?

What is the approximate percentage of the Earth that is illuminated by the sun at any given time?

When the Earth is at its greatest distance from the sun, its Northern Hemisphere is tilted toward the sun. What season takes place in the Southern Hemisphere at this time?

About how long does it take the Earth to make one complete rotation on its axis?

Which of the following planet positions beginning closest to the Sun is correct?

During which portion of the Earth's revolution around the sun is the Northern Hemisphere tilted toward the sun?

Orbital velocity is the average speed of a planet moving through space in its orbit around the sun. Which of the following planets has the fastest orbital velocity?

The numerous rocks orbiting the Sun between Jupiter and Mars are