analyze your experience as a citizen as to the actual burning and
air pollution and public health problem .

This is talking about your experience. Here's an example:
In my experience, air pollution has provoked many asthma attacks. The air pollutants affect my asthma and it makes it hard for me to breathe. It is a very big problem for people with respiratory infections and should be taken care of.
:) hope this helps

The speed of  sound:   sound travels  at different speeds depending on what it istraveling through. of the three mediums (gas, liquid, and solid)  sound waves travel the slowest through  gases, faster  through  liquids, and fastest  through  solids.