The correct answer is A (Automobiles).
Particulate matter is a complex mixture of extremely small particles and liquid droplets.
One of the major components of particulate matter is sulphate usually coming from sulphur dioxide found in exhaust fumes that have been produced by automobiles . Other components are nitrates , ammonia, sodium chloride and black carbon.
Other components of particulate matter come from dust, soot, smoke, industrial emissions.
Particulate matter is one of the most common contributor to air pollution.
Mitochondria is the powerhouse of the cell
The answer is C because there are germs on your hands
For exercise to be efficient, you must engage in a meaningful exercise
at least three to five times a week. Exercising too little won't engage
your muscles and body like it should. Conversely, too much exercise on
your body won't allow it any time to heal itself from strain and
exertion.
Deincrustation (desincrustation) treatment can cause sebum to be broken down or blackheads to be liquefied, as in deep-pore cleansing.
Deincrustation, or galvanic face cleansing is a method of deep skin cleansing with the use of weak direct current.
The method allows easy removal of comedones – buildups resulting from pore clogging with a mixture of skin oil, dead cells and microorganisms.
There are open and closed comedones. Open comedones are blackheads, which have contact with the environment, while closed comedones are deep-seated whiteheads without contact with the environment.
Comedones not only look bad but, after a certain period of time, start getting inflamed, since skin oil and dead cells are perfect media for microorganism existence and reproduction. This results in ugly pimples, which, depending on the process intensiveness, can leave scars. Therefore, comedones have to be removed promptly, and deincrustation is a very good method for the purpose.
The treatment is suitable even for sensitive skin. Depending on the skin type the cosmetologist chooses optimal deincrustation schedule for each individual. The result is visible after the first treatment, and regular treatments allow forgetting about problem skin for good.
Learn more about deincrustation here : brainly.com/question/21585858
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