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"Earth Photo From ISS" |
1. Blue Planet:
Earth is often referred to as the "Blue Planet" due to its abundant water, which covers about 71% of the planet's surface.
2. Life Supporting:
Earth is the only known celestial body to support life. Its diverse ecosystems host a vast array of living organisms.
3. Atmosphere Composition:
The Earth's atmosphere is primarily composed of nitrogen (78%) and oxygen (21%). Trace amounts of other gases contribute to its composition.
4. Rotational Speed:
Earth rotates on its axis, completing one full rotation approximately every 24 hours, causing day and night.
5. Orbital Period:
It takes about 365.25 days for Earth to complete one orbit around the Sun, defining a year.
6. Magnetic Field:
Earth has a magnetic field generated by its liquid iron-nickel core, which protects the planet from solar wind and cosmic radiation.
7. Continental Drift:
The Earth's outer shell, the lithosphere, consists of tectonic plates that constantly move, leading to phenomena such as earthquakes and the shifting of continents.
8. Diverse Climates:
Earth exhibits a variety of climates, ranging from polar ice caps to tropical rainforests, due to its axial tilt and rotation.
9. Water Reservoirs:
Oceans contain about 97% of Earth's water, with the remaining 3% found in glaciers, lakes, rivers, and the atmosphere.
10. Dynamic Geology:
Earth's surface is shaped by geological processes such as erosion, volcanic activity, and the formation of mountains.
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