Shannon wants to work with renewable energy. She is researching what it would take to become a geochemist. A geochemist is someone who uses chemistry to study water and the elements in it. What skill or ability will Shannon need the most to be effective in this position?

Smoking damages the respiratory system by inhalation of a foreign substance, that is absorbed and residue is left behind on our lungs sponge like substance. the gas that is inhaled also increase your blood pressure and dilates your blood vessels. also the process of inhaling and exhaling the smoke it causes irritation to the throat and mouth. smoking can cause lung cancer and other respiratory and circulatory diseases.