<span>Respiratory illness is a health risk associated with ground level ozone. The correct option is C. Inhaled ozone travel through the wind pipe, enter the lungs and damage the alveoli and bronchioles which are responsible for oxygen exchange, thus leading to various respiratory diseases.</span>
<span>A gene contains all the information needed to build a unique human being.
Genes contain DNA and traits and so on. Genes make up chromosomes.
</span>
Normal,dar gandeste-te mai mult
