Astronomy Practice Exam

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Which planet is recognized as the third from the Sun?

Mars
Venus
Earth
Neptune

The correct answer is: Earth

Earth is recognized as the third planet from the Sun in our solar system. The planets are arranged in order of their distance from the Sun, starting with Mercury as the closest, followed by Venus, and then Earth. This order is important as it reflects the gravitational forces and the conditions each planet experiences, such as temperature and availability of water, which make Earth unique in supporting life. Other options like Mars, Venus, and Neptune are positioned at different distances from the Sun, with Mars being fourth, Venus second, and Neptune being farthest at eighth, emphasizing Earth's unique position in the solar system.