The answer is to keep out invaders<span>
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Answer:
B) tympanic membrane
Explanation:
Tympanic membrane
It is also called the eardrum . It is a layer of the tissue present in the ear of the human , which is responsible for receiving vibrations of sound from the outer air and transmit them to auditory ossicles ,
It is also responsible for serving as the lateral wall of the tympanic cavity , which separates it from the external auditory canal .
Answer:
<em>Untouchability is a social evil because the backward classes are denied the very fundamental rights, which are guaranteed to each and every citizen by the Constitution. ... Untouchability alienates people from the social structure and hinders the progress of the society as a whole.</em>
Explanation:
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One major effect of the Industrial Revolution was that it took away jobs. Jobs that normal people did were now being done by machines at a faster rate. Also, people started to live in crowded spaces, what is now known as cities to go work at factories for low wages. Also because of the Industrial Revolution, there was a lot of air pollution due to the factories.
Hope that helped :)
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