answer the queston in the description
1. What are the four categories of air samples? Define each one in your own words, and provide an example of how each one might be applied in a real-world scenario.
Your response should be at least 200 words in length. You are required to use at least your textbook as source material for your response. All sources used, including the textbook, must be referenced; paraphrased and quoted material must have accompanying citations