Damaged lungs are more sensitive to incurable diseases that can cause death. respiratorysupplied-air respirator air-purifying respirator face shield

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This kind of damage occurs repeatedly, it may lead to permanent damage to your lungs that could cause a lower quality of life. Ozone may aggravate chronic lung diseases, such as emphysema and bronchitis. Scientists are concerned that repeated short-term damage from ozone exposure may permanently in- jure the lung

for question 8

1: it gets the blood pumping more

2: endorphins and other neurotransmitters

since you have not provided the options here i   am going to give you general overview about hormone.hormone are actually the part of endocrine system in our body and produced by the endocrine glands. the hormones act like a chemical messenger   within human body. once produce by the glands they   travel through the blood stream and reach at specific or target tissue and organs   which result in control of our body function. the hormones are specific in their work and work on only the targeted tissue or organ   . with the of hormone endocrine system regulate the heart rate , metabolism, our mood and   growth as well as the development and even the sleeping cycle etc. they actually are the messenger for body cell and organs .