Scientific facts about the earth

1. The Earth is approximately 4.54 billion years old, based on radiometric dating of rocks. 2. The Earth is the third planet from the Sun and is the only known planet in the universe to support life. 3. The Earth's atmosphere is composed of 78% nitrogen, 21% oxygen, and 1% other gases, including carbon dioxide and water vapor. 4. The Earth's magnetic field is generated by the motion of molten iron in its core and protects the planet from harmful solar radiation. 5. The Earth's crust is composed of several large tectonic plates that move slowly over time, causing earthquakes and volcanic activity. 6. The Earth's climate has been changing throughout its history, but human activities, such as burning fossil fuels, have caused a significant increase in global temperatures in recent decades. 7. The Earth's oceans cover approximately 71% of its surface and contain more than 97% of the planet's water. 8. The Earth's rotation causes day and night, with one complete rotation taking approximately 24 hours. 9. The Earth's gravitational force is what keeps us and everything else on the planet from floating off into space. 10. The Earth's moon is the fifth largest moon in the solar system and is believed to have formed from debris left over after a Mars-sized object collided with the Earth early in its history.

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