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From extreme climates to moon quakes, here are some top facts about Earth. Skip to main content. Sign in. Mail. 24/7 Help. For premium support please call: 800-290-4726 more ways ...
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 ...
Earth is rounded into an ellipsoid with a circumference of about 40,000 km. It is the densest planet in the Solar System. Of the four rocky planets, it is the largest and most massive. Earth is about eight light-minutes away from the Sun and orbits it, taking a year (about 365.25 days) to complete one revolution.
Brush up on your Earth Day knowledge with these interesting Earth Day facts and trivia about how it began and why we celebrate Mother Earth on April 22.
Structure of Earth. The mesosphere is labeled as Stiffer mantle in this diagram. The lower mantle, historically also known as the mesosphere, represents approximately 56% of Earth's total volume, and is the region from 660 to 2900 km below Earth's surface; between the transition zone and the outer core. [1]
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 ...
Earth's outer core is a fluid layer about 2,260 km (1,400 mi) thick, composed of mostly iron and nickel that lies above Earth's solid inner core and below its mantle. [ 1 ] [ 2 ] [ 3 ] The outer core begins approximately 2,889 km (1,795 mi) beneath Earth's surface is at the core-mantle boundary and ends 5,150 km (3,200 mi) beneath Earth's ...
Earth Day has been around since the '70s. Every year, over a billion people get involved with the initiatives. Here, learn surprising Earth Day facts.