Earth and environmental science

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it is power point about earth and Humans and population,with lots of pictures in it.
i hope you will like it......About me : Hi !!! my name is adwityaa & i live in india and if you want you can add me as your friend on facebook or follow me on twitter..

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  • “Many people do not realize that when you run a car or truck on gasoline of diesel fuel, you are actually running it on hydrogen. And all we are doing is using the hydrogen from water. And under the National Bureau of Standards figures shows that when you use water, the energy release is roughly two and a half times more powerful then that of gasoline. So water is a very powerful fuel.” Stan Meyers 1992

    Stanley Meyer was one of the most important inventors since Nicola Tesla. He was the first inventor to advance High Efficiency Electrolysis Technology to it’s perfection, including running a car completely on tap water..

    http://online24.edublogs.org/with-hho-generators-save-money/
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  • ECOLOGY

    Polar Bears, Whales and Elephants Among World’s Top Threatened Species to Watch in 2009

    Such well-known and beloved species as polar bears, tigers, gorillas, pandas, elephants, whales and rhinos, as well as the lesser-known black-footed ferret and vaquita are among the most threatened species to watch in 2009, according the World Wildlife Fund (WWF). WWF scientists say these, and many other species, are at greater risk than ever before because of poaching, habitat loss and climate change-related threats..

    http://online24.edublogs.org/ecology/
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Earth and environmental science

  1. 1. Earth and Environmental Science
  2. 2. Our earth <ul><li>What is Earth? </li></ul><ul><li>Earth is the third planet from the sun. </li></ul><ul><li>It the densest and the fifth largest of the eight planets in the solar system. </li></ul><ul><li>Earth is currently the only known astronomical body where life is known to exist. </li></ul><ul><li>It is home to millions of species including humans. </li></ul><ul><li>Earth was formed 4.54 billions years ago, and life appeared on its surface within a billion years. </li></ul><ul><li>The shape of the Earth is very close to that of an Oblate Spheroid. </li></ul>
  3. 3. earth’s crust, mantle and core <ul><li>Earth’s interior: </li></ul><ul><li>Earth has a diameter of about 12,756 km. Earth’s interior consists of rock and metal. It is made up of 4 main layers: </li></ul><ul><li>The CRUST : thin silicate rock material </li></ul><ul><li>The MANTEL: dense and mostly solid silicate rock. </li></ul><ul><li>The OUTER CORE: a liquid molten core of nickel and iron. </li></ul><ul><li>The INNER CORE: a solid metal core made up of nickel and iron(2440 km diameter) </li></ul><ul><li>The temperature in the core is hotter than the Sun’s surface </li></ul>
  4. 4. Human beings on earth <ul><li>A human or a human being is a person. The scientific name for Human species is Homo sapiens, which means “wise man” in Latin. Humans are bipedal which means they walk on two feet. Humans are :Men, Women and children. </li></ul><ul><li>Women , Men and Children </li></ul>
  5. 5. P opulation <ul><li>A population is all the organisms that both belong to the same species and live in the same geographical area. </li></ul><ul><li>Due to the increase of population, Earth is getting destroyed humans for their sake are cutting trees, which helps in providing Oxygen (a gas ,which helps a human to live or survive) </li></ul><ul><li>Earth has provided us with thousands of privileges but in return we have damaged our mother Earth. </li></ul>
  6. 6. Pollution <ul><li>Pollution is contaminating of the environment as a result of human activities. </li></ul><ul><li>It is created mostly by human actions, but can also be a result of natural disasters. </li></ul><ul><li>Example: Air pollution, water pollution, soil pollution, noise pollution etc. </li></ul><ul><li>Pollutions cause damage to Earth and all the things living on it. </li></ul>
  7. 7. Ozone layer <ul><li>Ozone is a gas made up of three oxygen atoms (O 3).It occurs naturally in small amount in the upper atmosphere (the stratosphere) . </li></ul><ul><li>Ozone protects life on Earth from the Sun’s ultraviolet (UV) rays . </li></ul><ul><li>In 1980s , scientists began finding holes in the Ozone layer. </li></ul>
  8. 8. Green house effect and global warming <ul><li>The green house effect is the rise in temperature that the Earth experiences because certain gases in the atmosphere trap energy from the sun. </li></ul><ul><li>Global warming is a slow but steady rise in Earth’s temperature .If earth’s becomes hotter, the sea level will also become higher because the temperature rise will make ice glaciers melt. The sea level rise may cause coastal areas to flood. </li></ul>
  9. 9. Save earth <ul><li>How to save Earth?? </li></ul><ul><li>There are many ways to save our Earth .Some are: </li></ul><ul><li>Dispose off the waste properly. </li></ul><ul><li>Spread awareness about it. </li></ul><ul><li>Reduce , Reuse , Recycle </li></ul><ul><li>Conserve energy </li></ul><ul><li>Save Water ETC. </li></ul>
  10. 10. nature
  11. 11. Under Water life on Earth
  12. 12. Our Unique earth <ul><li>There are many different types of animals on Earth. </li></ul><ul><li>Like some animals Fly in the sky </li></ul><ul><li>Some stay on land. </li></ul><ul><li>B ut one different thing on Earth is that ……………. Whoever lives on Earth is UNIQUE in some or the other way because Life on Earth Unique as Our marvelous Earth is UNIQUE…………… </li></ul>
  13. 13. rainbow <ul><li>Rainbow is seen in the sky after rain. </li></ul>
  14. 14. sunsets
  15. 15. Beautiful earth
  16. 16. B L O SS O M S
  17. 17. The End <ul><li>This Presentation is made by </li></ul><ul><li>- </li></ul><ul><li>Adwityaa Jha </li></ul><ul><li>I hope you enjoyed it!!!!!! </li></ul>

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