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Earth is the third planet from the Sun and the only astronomical object known to harbor life. This is enabled by Earth being an ocean world, the only one in the Solar System sustaining liquid surface water. Almost all of Earth's water is contained in its global ocean, covering 70.8% of Earth's crust.
25 Facts about Earth Day. 1. Gaylord Nelson, a senator from Wisconsin, founded Earth Day in 1970 to raise public consciousness about environmental concerns such as pollution, oil spills and ...
In 2018, Indians planted over 50 million trees in 24 hours. Worldwide environmental efforts inspired people in India to rally together for a Guinness World Record in honor of Earth Day. According ...
The U.S. generates 4.9 pounds of waste per person per day. Earth Day Facts (Getty Images) According to the EPA ‘s most recent figures, the total amount of solid waste generated each year falls ...
Earth's inner core is the innermost geologic layer of the planet Earth. It is primarily a solid ball with a radius of about 1,220 km (760 mi), which is about 20% of Earth’s radius or 70% of the Moon 's radius. [1] [2] There are no samples of Earth's core accessible for direct measurement, as there are for Earth's mantle. [3]
The geological history of the Earth follows the major geological events in Earth's past based on the geological time scale, a system of chronological measurement based on the study of the planet's rock layers ( stratigraphy ). Earth formed about 4.54 billion years ago by accretion from the solar nebula, a disk-shaped mass of dust and gas left ...
Here are 10 interesting facts about Earth Day. Earth Day was created by a senator. Gaylord Nelson, a Democratic senator from Wisconsin, was growing increasingly concerned over the state of the U.S ...
The timeline of the evolutionary history of life represents the current scientific theory outlining the major events during the development of life on planet Earth. Dates in this article are consensus estimates based on scientific evidence, mainly fossils . In biology, evolution is any change across successive generations in the heritable ...
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