Listening to anything that is too loud. Classical Music, rock music, hip hop, chilldren's songs--if it is too loud, it can hurt the ear. As will a lawnmower, a car engine, airplane engine, etc. Other things--if someone hits you with their fists on your ears, that could harm the ear, as would slapping someone on their ears. Putting objects in someones ears is dangerous as it could damage the eardrum or pierce it.
by rubbing it
No the odor is not harmful but if you eat it it is harmful.
The Government can limit religious practices if the practices are harmful to others.
um... well at its most harmful it can sorta cause death... yes its harm full but not as harm full as not drinking
sulphide acid and hydrogen sulfate are harmful materials that can harm a metal.
by rubbing it
No harm is done! Just be careful not to scratch your cat's ears with your fingernails by accident.
No, pig ears are a good chewing treat for dogs.
Bad farming practices means practices that are harmful to the land or the environment. This includes using harmful pesticides and fertilizers.
There is no harm
no it will not harm them
Yes. it is harmful