What might happen if your vestibular system only had two semicircular canals? A) you wouldn’t be able to move your limbs properly

B) your body couldn’t detect rotational movement in three dimensional space

C)you would feel dizzy and sick most of the time

D)you wouldn’t be able to stand up straight

How do we if it is a video and they know your face.

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.