Answer:
They are produced by the lacrimal glands above your eyes. They drain into tiny holes in the corners of your upper and lower eyelids before traveling through small channels, and down your tear ducts to your nose. Our tears taste salty because of electrolytes.
So here is the most obvious thing here… tolerance is a physical effect of repeated use of a drug, a great example would be a alcohol. Always the Tolerance does not always equal a type of addiction. Withdrawal: Symptoms a person experiences when not using a substance, due to the body reacting to no longer having the substance. Now back to the alcohol… alcohol is a very commonly used on types of drugs, for an example like regular rubbing a alcohol, drinking and more. This type can really make somebody addicted to the type of substance that is in it. Hope this helps!
<span>It releases ONE H2O to join TWO monomers.
So, when third monomer joins, 2nd H2O will release.
When 4th monomer join, 3rd H2O will release.
...
....
.... and so on.
When the 20th monomer join, 19th H2O will release.
Means in total of 19 water molecule releases</span>