<p><img alt="Air flows through a convergent-divergent nozzle as shown in Figure 4. The pressures, Mach numbers and areas at the entrance (1), throat (2) and exit (3) are indicated in
<h3>Question Description</h3> <p><strong>List</strong> and <strong>describe</strong> five types of data collection tools or instruments used in research (50 to 100 words each).</p>