Answer:
so many dust particles are there in the air. during inhalation, those particles fail to reach our lungs due to the presence of ciliated mucous lining in our upper respiratory tract.
primarily nose and its ciliated mucous lining and nasal hair prevent the dust particle to come inside. if some particles get entry then the person starts sneezing until those particles are out.
if the nose fails to prevent the dust then our respiratory tract does it.
The answer is to do what you must my friend, goodluck!!
#1
Inner stem cell mass
#2
Harvested Unspecialized Embryonic Stem Cells
C. Half shaded and half white.
The community will be affected if a species dies or moves.
When heat is added to a substance, the molecules and atoms vibrate faster. As atoms vibrate faster, the space between atoms increases. The motion and spacing of the particles determines the state of matter of the substance. The end result of increased molecular motion is that the object expands and takes up more space.