Benzoyl peroxide is a topical agent that has both antibacterial and comedolytic properties. It is the topical agent most effective in reducing the P. acnes population. -Bacterial resistance does not develop to benzoyl peroxide. The irritant effect of the drug also causes vasodilation and increased blood flow, which may hasten resolution of the inflammatory lesions. - Although Accutane, low-dose tetracycline, and Retin-A are often used to treat severe acne, these drugs should not be given to those who are pregnant because they can affect the development of the fetus.
Plants make up most of our oxygen here on earth, because of the carbon cycle and photosynthesis. They take carbon dioxide, and turn it into oxygen. And not only that, but some animals live in trees to protect themselves from birds and other animals.
Temperature is a quantitative measurement because it can be "measured". Quantitative data is where you record data that is measurable. Qualitative data is research collected from observations.
