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  background-image: linear-gradient(140deg, black, transparent 50%, transparent);
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<img id="img1" src="image/earth.png"> Earth is the third planet...

Earth is the third planet from the Sun and the only place known in the universe where life has originated and found habitability. While Earth may not contain the largest volumes of water in the Solar System, only Earth sustains liquid surface water, extending over 70.8% of the planet with its ocean, making it an ocean world. The polar regions currently retain most of all other water with large sheets of ice covering ocean and land, dwarfing Earth's groundwater, lakes, rivers and atmospheric water. The other 29.2% of the Earth's surface is land, consisting of continents and islands, and is widely covered by vegetation. (by Wikipedia)