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my_answer / question_4 / sample_2 / index.html

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<!DOCTYPE html>
<html>
  <head>
    <title>pollution sample 2</title>
    <meta charset="UTF-8"/>
    </head>
  <body>
    <div>
      <h1>pollution sample 2</h1>
    </div>
    <div id="odds-elements">
    </div>
    <script type="text/javascript" src="pollution.js"></script>
  </body>
</html>