Earth

Earth is the third planet from the Sun, and the densest and fifth-largest of the eight planets in the Solar System.Earth formed approximately 4.54 billion years ago, and life appeared on its surface within one billion years. Earth's biosphere then significantly altered the atmospheric and other basic physical conditions, which enabled the proliferation of organisms as well as the formation of the ozone layer, which together with Earth's magnetic field blocked harmful solar radiation, and permitted formerly ocean-confined life to move safely to land. The physical properties of the Earth, as well as its geological history and orbit, have allowed life to persist. Estimates on how much longer the planet will be able to continue to support life range from 500 million years , to as long as 2.3 billion years.
Earth's lithosphere is divided into several rigid segments, or tectonic plates, that migrate across the surface over periods of many millions of years. About 71% of the surface is covered by salt water oceans, with the remainder consisting of continents and islands which together have many lakes and other sources of water that contribute to the hydrosphere. Earth's poles are mostly covered with ice that is the solid ice of the Antarctic ice sheet and the sea ice that is the polar ice packs. The planet's interior remains active, with a solid iron inner core, a liquid outer core that generates the magnetic field, and a thick layer of relatively solid mantle.
Earth gravitationally interacts with other objects in space, especially the Sun and the Moon. During one orbit around the Sun, the Earth rotates about its own axis 366.26 times, creating 365.26 solar days, or one sidereal year. The Earth's axis of rotation is tilted 23.4° away from the perpendicular of its orbital plane, producing seasonal variations on the planet's surface with a period of one tropical year (365.24 solar days). The Moon is Earth's only natural satellite. It began orbiting the Earth about 4.53 billion years ago. The Moon's gravitational interaction with Earth stimulates ocean tides, stabilizes the axial tilt, and gradually slows the planet's rotation.
The planet is home to millions of species, including humans. Both the mineral resources of the planet and the products of the biosphere contribute resources that are used to support a global human population. These inhabitants are grouped into about 200 independent sovereign states, which interact through diplomacy, travel, trade, and military action. Human cultures have developed many views of the planet, including its personification as a planetary deity, its shape as flat, its position as the center of the universe, and in the modern Gaia Principle, as a single, self-regulating organism in its own right.

This entry was posted in

    Category List

    • 3D Animation Video
    • 3D presentation
    • 3G
    • 3G Data Cards
    • 5 Essential Diet Tips
    • A Way to Earn $100 A Day..Capitalize on FaceBook
    • Accessories
    • Adsense
    • Amazon
    • Android
    • Apple
    • Approval
    • Article
    • basic I.T
    • best ways of burning fat
    • Bike
    • biomedical
    • Biomedical Engineering
    • BlackBerry
    • Blogs
    • Bodybuilder
    • Bodybuilder Diet
    • Bodybuilder's Diet
    • Books
    • brain
    • Brain Cancer
    • brain structure
    • Brain Tumor
    • Brain wired for learning
    • Breakfast Diet
    • Bucknell Engineering Week
    • Bucknell Engineering Week-2013
    • Burning Fat
    • Camera
    • Cancer
    • caner treatment
    • Cars
    • central nervous system
    • common diseases
    • Computer
    • Cricket News
    • CSK News
    • Dengue Virus
    • Dengue Virus Infection
    • Devices
    • Diabetes
    • Diabetes overview
    • Diabetes patients
    • Diet
    • Diet for Bodybuilder
    • DNA
    • DNA Replication
    • Energy
    • Essential Diet Tips
    • facebook
    • Facebook Timeline
    • Filter Blood
    • four fundamntal human tissue
    • Games
    • gift cards
    • ginger
    • Google
    • hacking
    • Health benifit
    • Healthy Breakfast
    • Healthy Breakfast Routine
    • Heart
    • Heart Failure
    • Heart Failure Video
    • Hiv
    • HIV replication
    • Host web site server
    • How to create a Google AdSense account
    • How to Earn Money on YouTube
    • How To Earn Money Online From PTC Sites ?
    • How to Get Visitors (Traffic) to Your Blog from Go...
    • How to Insert Heading Tags to Blogger Blog Posts
    • How To Make Money From Facebook?
    • How to Make Money From Google : Proven Strategy
    • How To Make Money Online on YouTube
    • How To Make Money Online With Google AdSense?
    • How to Use Post Title As Title Tag in Blogger Blog
    • human body
    • Human nervous system
    • human tissue
    • If you already have a Google AdSense account
    • iMotion
    • Indian News
    • Information
    • INTERNET
    • iPad
    • IPL News
    • Jobs
    • Kidney
    • Laptop
    • Laptops
    • LG
    • LG Nexus
    • Make money
    • Make Money Online in India : An Adsense Gameplan
    • Make Money Online in India The Hard Way
    • Make Money Online Strategy in 2013 & Beyond
    • Make more money with Google Adsense – Simple trick...
    • Making Money Online From Home Possible?
    • medical debate
    • medical science
    • Medical video
    • medicalvideo
    • medicinevideo
    • Memory Card
    • Micromax
    • Microsoft Office Access 2007
    • Microsoft Office Excel 2007
    • Microsoft Office InfoPath 2007
    • Microsoft Office Outlook 2007
    • Microsoft Office Power Point 2007
    • Microsoft Office Word 2007
    • Mobile
    • Model Diet
    • Model's Diet
    • Model's Essential Diet Tips
    • Modern Medicine
    • Muscle building Secrets
    • Nephron
    • nerve
    • nervous system
    • Nexus
    • Online Data Entry jobs in India & The Hard Reality
    • Player Diet
    • Player's Diet
    • Ptc
    • Reabsorb water
    • Reviews
    • Samsung's
    • Secret Nutrition Tips for Player
    • Security
    • Self-test
    • SEO Tips For Blogger Blogspot Blogs
    • Smartphones
    • Software
    • Solar Energy
    • Sports Nutration
    • Super Food
    • Symptoms of Brain Tumor
    • Tablet
    • Tablets
    • Technology
    • thyroid
    • thyroid diseases
    • Thyroid Test
    • Tips And Trick
    • Tools
    • Traditional Medicine
    • Traditional vs Modern Medicine
    • treatment
    • Tutorials
    • USB
    • Vehicle
    • vlc
    • Ways of cancer treatment
    • Web Development
    • webdesign
    • What is cancer
    • What it Takes to Earn Money Online in India
    • Wi-Fi
    • Wi-Fi Devices
    • Wi-Fi Printer
    • windows
    • windows 98
    • Windows Phone
    • Windows Vista
    • windows XP
    • ZTE

    Blog Archive

Bloggerized by FiyaGalito & | Powered By Movizac.com