it is a chemical barrier because it produces tears that are chemicals. also- for your information, skin is a physical barrier along with the nose and mucus and cilia. sebum and stomach acid are chemical. :D
A physical change. A chemical change would be, for example, burning clothes, or dissolving clothes.
Physical never changes what it is; For example if you boil water its physical because you can change it back to water from precipitation, or if you tear a sheet of paper up it's still paper. Chemical- changes it's whole from it can never go back to what it was; Example, burning wood
ANSWER:Its a physical change. If you burned it and it became ash, its a chemical change. Physical change means it made no change on a molecular level. Its still paper, just in two separate pieces.It is a physical change, as the chemical property of the paper remains unchanged.
There are several types of decay that can occur in materials, including physical decay (such as wear and tear), chemical decay (such as rusting or corrosion), and biological decay (such as rotting or decomposition).
Chemical agents such as tear gas and pepper spray can produce temporary disabling conditions that affect both physical (such as respiratory irritation, burning sensation) and mental (confusion, disorientation) capabilities. These agents are commonly used in riot control and self-defense situations.
Please take your dog to the vet, how do you know its a clogged tear duct?
Another name for the tear duct is the lacrimal duct. It is responsible for draining tears from the eyes into the nasal cavity.
If you pull your lower lid down on your eye, if you look in a mirror, there is a little hole on the the side closest to your nose and its your tear ductThink of the tear duct as a drain from your eyes to your nose, this is why your nose runs when you cry.
A physical change. A chemical change would be, for example, burning clothes, or dissolving clothes.
The tear ducts are called the lacrimal ducts. The duct that drains the tears from your eye (located in the nasal corner of the eye) is called the nasolacrimal duct.
To treat a tear duct infection, warm compresses can help alleviate symptoms. Antibiotic eye drops or ointment may also be prescribed by a doctor. In severe cases, surgery may be necessary to clear a blocked tear duct.
tear duct
tear heating air conditioning
Tear duct.
No...! But you can have two tear ducts in one eye but you have to be born with that... If you do have two only one works though.
That is a chemical property. A physical property could be its mass, volume, density, physical state, or that it can tear easily. A physical property is one that does not change the chemical composition of the substance.
The part of the eye is the tear duct.