Page 1 :
Cy, , ant for living beings. No one, , called wind. We can also feel air, g through our nose., , nents of Air 1/7, , , , aixture of different gases, dust particles, pollens and smoke. All living, he-in oxygen and breathe-out carbon dioxide. Plants use carbon, pare food and release oxygen in return., , , , ad dust particles in the air we can see this as, entering our room through the window., id poisonous gases are also found in the air., the air dirty. It is called px . Such, l to health. Our eyes and lungs may, oblems in case we breathe polluted air., , , , m= Vehicles running on roads leave the, smoke behind which gets mixed "a de, , , , , , get mixed up with the air., , Environm