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    Learn English > English lessons & exercises > Contemporary Archeology 2 > Stats updated every 4 hours
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    Exercise "Contemporary Archeology 2", created by baboune16 (a free exercise to learn English):
    Results of the 273 people who have taken this test:
    Average mark: 66 / 100 Share

    Latest member with a 100/100 (perfect mark): bleuclair64 / FRANCE, on Monday 09 August - 07:31:
    "Thank you"

    They got a perfect mark

    Stats (273 candidates)
    Question 1 passed: 67 %
    * is the scientific method of dating tree rings to the exact year they were formed.

    Question 2 passed: 74.7 %
    The impact of the * has made this technique one of the most significant discoveries in study of prehistory.

    Question 3 passed: 63.4 %
    * is safe for use in public spaces; it detects metal or non-metal underground objects.

    Question 4 passed: 57.5 %
    * dating of calcite deposits was used in different Paleolithic caves;it provided a timeframe for the probable age of paintings.

    Question 5 passed: 70 %
    * dating has an upper age limit of 500, 000 years, defined by the half-life of thorium.

    Question 6 passed: 49.5 %
    * includes drawings, paintings, engravings and geoglyphs.

    Question 7 passed: 66.3 %
    * can be established for any object, especially if this object is subject to frequent changes and modifications.

    Question 8 passed: 70.7 %
    In archeology, the * method is used to date potteries and other heated materials.

    Question 9 passed: 69.6 %
    * is the residual magnetism exhibited by remains,used to determine their age and the former positions of Earth's magnetic poles.

    Question 10 passed: 56 %
    * isotope ratios are used to differentiate between local and non-local populations.

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