5. Write a programme using <br>

<html>

<head>

<title>First Programme</title>
</head></title>
<body>
Types of pollution  <br> 1. Land pollution <br>
2. Air pollution <br> 3. Water pollution <br> 4. Noise pollution
</body>
     </html>

6.Write a programme using <H1> to <H6>

<html>
<head>
<title> First programme</title>
</head>
<body>
<h1>HTML</h1><br><h2>HTML</h2><br><h3>HTML</h3>
<br><h4>HTML</h4><br><h5> HTML</h5><br><h6>HTML</h6>
</body>
</html>