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  2. Earth Day 2014: Celebrate by looking at 11 amazing photos of ...

    www.aol.com/news/2014-04-22-earth-day-2014...

    In 1970, millions of Americans concerned about the environment observed the first 'Earth Day.' Forty-four years later, the tradition and message of conserving our beautiful planet is still going ...

  3. Earth Day - Wikipedia

    en.wikipedia.org/wiki/Earth_Day

    Earth Day is an annual event on April 22 to demonstrate support for environmental protection.First held on April 22, 1970, it now includes a wide range of events coordinated globally by EARTHDAY.ORG (formerly Earth Day Network) [1] including 1 billion people in more than 193 countries.

  4. 24 Free Holiday Word Searches

    www.aol.com/24-free-holiday-word-searches...

    Challenging your brain with printable word searches is fun all year long, but these holiday word searches are sure to get you in the spirit and help you celebrate. You can print out these free ...

  5. Doomsday Clock - Wikipedia

    en.wikipedia.org/wiki/Doomsday_Clock

    The Doomsday Clock is a symbol that represents the estimated likelihood of a human-made global catastrophe, in the opinion of the members of the Bulletin of the Atomic Scientists. [1]

  6. Naturally occurring radioactive material - Wikipedia

    en.wikipedia.org/wiki/Naturally_occurring...

    Naturally occurring radioactive materials (NORM) and technologically enhanced naturally occurring radioactive materials (TENORM) consist of materials, usually industrial wastes or by-products enriched with radioactive elements found in the environment, such as uranium, thorium and potassium and any of their decay products, such as radium and radon. [1]

  7. Exclusive: Satellite images show increased activity at ... - AOL

    www.aol.com/news/exclusive-satellite-images-show...

    Russia, the United States and China have all built new facilities and dug new tunnels at their nuclear test sites in recent years, satellite images obtained exclusively by CNN show, at a time when ...

  8. Worksheet - Wikipedia

    en.wikipedia.org/wiki/Worksheet

    The form comes with two worksheets, one to calculate exemptions, and another to calculate the effects of other income (second job, spouse's job). The bottom number in each worksheet is used to fill out two if the lines in the main W4 form. The main form is filed with the employer, and the worksheets are discarded or held by the employee.

  9. Smiling Sun - Wikipedia

    en.wikipedia.org/wiki/Smiling_Sun

    A network of pro-nuclear physicists, software developers, and environmental activists drew inspiration from the original anti-nuclear logo, but viewed nuclear power as part of a sustainable and environmentally-friendly energy option into the 21st century, and devised a similar image—with a pro-nuclear connotation—as part of an ongoing ...