Answer:It should be killing harmful bacteria
Explanation:
Answer: None of these options
Explanation:
The non-point source pollution is the pollution in which the source of pollution remains undetermined. Such a source of pollution cannot be traced back to its origin. It remains mixed with other pollutants.
According to the given situation, sources of pollutants are mentioned in the given options. The noise is generating from source chainsaw, smoke is generating from the wood stove and fumes are generating from the lawn mower.
Epithelial tissue covers the body surface and forms the lining for most internal cavities. The major function of epithelial tissue includes protection, secretion, absorption, and filtration. The skin is an organ made up of epithelial tissue which protects the body from dirt, dust, bacteria and other microbes that may be harmful. Cells of the epithelial tissue have different shapes as shown on the student's worksheet. Cells can be thin, flat to cubic to elongated. Cited from: https://www.msnucleus.org/membership/html/k-6/lc/humanbio/4/lchb4_3a.html
